The verdict in three sentences
Between two online store quotes at $8,000 and $60,000, the real gap rarely sits in the headline number: it hides in what is not priced, such as app subscriptions, product migration, sales tax configuration and maintenance. A low quote can cost more over 3 years than a high one if it leaves $50 to $600 a month of apps on your card and skips support entirely. Before comparing, convert every proposal into a three year total cost and insist on clear ownership of the theme and custom code.
The Chicago context
Take the owner of a Chicago brand selling cycling and fitness gear through 2 stores in Lincoln Park and the West Loop, plus 25 independent retailers across the Midwest. He wants an online store with 700 SKUs, local pickup, a sizing tool and a loyalty program, shipping nationwide. He receives four quotes: $8,500, $18,000, $34,000 and $58,000.
The traps, line by line
| Trap | Typical quote line | Hidden 3 year cost | Clause to demand |
|---|---|---|---|
| Unpriced apps | "Advanced features via third party apps" | $1,800 to $21,600 ($50 to $600 a month) | List of every app with its monthly price |
| No product migration | "Client to supply product import file" | $800 to $5,000 | Migration of 700 SKUs, variants, images and redirects included |
| Sales tax ignored | No mention | Audit and penalty risk after crossing economic nexus thresholds | Sales tax setup for Illinois and nexus states, tax app costed |
| Theme not transferred | "Custom theme" | Rebuild if you switch agency | Assignment of rights to theme and custom code |
| Maintenance excluded | "Support not included" | $5,400 to $18,000 | Monthly support contract with response times |
| Vague QA | "Testing included" | 2 to 4 weeks of billable fixes | Written test scenarios and a 90 day warranty |
| Accessibility skipped | No mention | ADA demand letters, $5,000 to $25,000 to settle and fix | WCAG 2.1 AA target stated in scope |
The costliest trap is often apps: a sports store running reviews, loyalty, advanced filters, size guides, abandoned cart flows and tax automation can easily reach $400 a month, or $14,400 over 3 years.
Four quotes converted to 3 year cost
| 3 year item | Quote A | Quote B | Quote C | Quote D |
|---|---|---|---|---|
| Build | $8,500 | $18,000 | $34,000 | $58,000 |
| Unpriced apps | $14,400 | $9,000 | $4,500 | Included |
| Product migration | $4,000 | $2,000 | Included | Included |
| Maintenance | $12,600 | $9,000 | $7,200 | $14,400 |
| Platform plan | $3,600 | $3,600 | $3,600 | Hosting $7,200 |
| Three year total | $43,100 | $41,600 | $49,300 | $79,600 |
| Theme ownership | No | Yes | Yes | Yes |
Quote A, nearly seven times cheaper than D at build, ends up costing more than B over 3 years and leaves you without the theme. Quote C costs $7,700 more than B but includes migration with redirects and cuts app dependency.
Questions to ask every agency
- Which paid apps will be required, and at what monthly price?
- Who owns the theme, code and accounts at the end of the project?
- Does migration include variants, images and 301 redirects from old URLs?
- How is sales tax configured, and who monitors nexus thresholds?
Kolonell's quotes price these lines separately, with maintenance plans at 25,000, 50,000 or 75,000 FCFA a month (about €38, €76 or €115).
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Illustrative example: Mike, owner of a cycling gear brand in Chicago, weighs quote A at $8,500 against quote C at $34,000. Over 3 years, A totals $43,100 and C $49,300, a gap of $6,200 instead of the $25,500 shown on paper. Quote C includes migration with redirects, protecting about 1,500 monthly visits from Google. At a 2 % conversion rate and a $95 average order, those visits are worth $2,850 a month in sales, or about $102,600 over 3 years.
FAQ
Why do online store quotes vary so much in Chicago?
Because scope differs: stock or custom theme, migration included or not, apps priced or left to you. On equal scope, the gap often shrinks by half.
Should we insist on owning the theme?
Yes, otherwise switching agency can mean paying $4,000 to $15,000 to rebuild the design. Ask for an assignment of rights clause in the contract.
Do we need to worry about sales tax in other states?
Yes, once you pass a state's economic nexus threshold, often $100,000 in sales, you must collect its sales tax. Budget for a tax app at roughly $20 to $100 a month as a 2026 estimate.
Should maintenance be in the quote?
Yes, with a monthly price, scope and response time. Over 3 years it often represents 15 to 30 % of total cost.
Is accessibility really a risk for a small brand?
ADA related demand letters target online stores of every size. Building to WCAG 2.1 AA from the start usually costs far less than fixing a live store under legal pressure.
Let's scope your project. Send us the quotes you have received and your catalogue, and we will price a proposal on three year total cost, including apps, migration and support. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.