I find the sweet spot for utility frameworks like AlpineJS is when used in conjunction with server-side components [1]. For example, when designing server-side Blade components, the more you can keep within the component itself (e.g. html, styles, interactivity), the easier it is to reason about and maintain the component going forward. If your x-data function becomes unwieldy, consider moving the code to a separate Javascript function that returns an object and calling that function from x-data.

Ultimately, using tools like Alpine or Tailwind is a tradeoff. My apps tends to be relatively small and only managed by myself or a small team. If you're building large, front-end heavy apps; React, Vue, Svelte, etc. are definitely a better fit.

[1] Laravel Blade Components: https://laravel.com/docs/9.x/blade#components)