My opinion will probably surprise you: marketplace themes are often a poor choice, but fully custom isn't always necessary either. The reality almost always sits somewhere between the two, and the real challenge is knowing exactly where to draw the line based on your catalog and ambitions. Here's how to decide, without the sales pitch.
The marketplace theme trap
A €60 ThemeForest theme, or equivalent, looks like an unbeatable deal at first glance. Reality, six months after purchase, is often different: these themes ship with 30 or more bundled modules to maximize commercial appeal, half of which will never be used but will keep weighing down every page load regardless. The underlying code is frequently messy, written to be generic and compatible with as many configurations as possible, which in practice translates into catastrophic performance scores: an LCP (Largest Contentful Paint) above 5 seconds is very common on this kind of theme, well beyond the 2.5-second threshold Google recommends. Finally, customization stays structurally limited by the child-theme system provided by the vendor, which wasn't designed with your specific use case in mind.
When custom development genuinely makes sense
A fully custom theme is worth it in specific situations: a catalog with specific needs (complex product configurators, per-customer B2B pricing, non-standard variant display), a strong brand identity that can't afford any visual compromise, strict performance requirements (Core Web Vitals must be green for SEO or advertising reasons), or a long-term vision with a roadmap of 3+ years justifying the higher upfront investment.
The middle-ground option, often the best one
Between these two extremes sits a third path that I recommend to the vast majority of my clients: start from PrestaShop's native classic theme, which is free, clean at the code level, and already performant by default, then customize it in depth through a genuine child-theme system built specifically for the store's needs. This is what I propose to roughly 80% of my clients: for a budget of €1,500 to €3,000, you get real customization consistent with your brand identity, without carrying the full bill of a 100% custom build, which often exceeds €5,000.
How to objectively evaluate a theme before buying
Always request a Lighthouse (or PageSpeed Insights) audit of the theme on its demo BEFORE purchasing. A mobile score below 70 should immediately raise a red flag and push you to walk away, whatever its visual qualities. Also check how many updates were published over the last 12 months: a theme that hasn't been updated in over a year will quickly accumulate incompatibilities with future PrestaShop versions.
What to remember
The choice between a marketplace theme, a customized classic theme, or a fully custom build doesn't depend on budget alone, nor on aesthetic preference — it depends on the real complexity of your catalog and your project's growth horizon. For most stores, the middle path of a customized classic theme offers the best balance between cost, performance, and brand differentiation.
