The honest answer is that Next.js is not always the right choice. For a content site where three editors publish daily and nothing custom is needed, a well-configured WordPress is fine and cheaper to staff. The case for Next.js is specific: it applies when speed, custom flows or search performance decide the commercial outcome.
You control what ships to the browser
With server components, a page ships zero JavaScript unless something on it genuinely needs interactivity. Page builders cannot make that distinction — they ship their whole runtime to every visitor. On one rebuild this alone took a property page from 2.1MB of JavaScript to under 90KB, and mobile LCP from 4.8s to 1.2s.
Pages exist before the request does
Static generation means your product and service pages are built at deploy time and served from a CDN edge near the visitor. There is no database query, no plugin chain, no cold PHP process — which is why time to first byte lands in the low hundreds of milliseconds regardless of whether the visitor is in Doha, London or Chicago.
Structured data becomes code, not a plugin
- Schema is generated from the same data that renders the page, so it cannot drift out of sync with the visible content.
- Metadata, canonicals and Open Graph tags are typed — a missing canonical is a build error, not something you discover in an audit six months later.
- Sitemaps and robots rules are generated from the content model rather than maintained by hand.
The trade-offs, stated plainly
You need a developer to change templates. Hosting is a deliberate decision rather than a default. And a badly built Next.js site is perfectly capable of being slower than a good WordPress one — the framework removes the ceiling, it does not guarantee the result. What it does give you is a codebase you own, with no licence that expires when the agency relationship does.