If you can get all of that for free (to start), and that saves you months of building, that's pretty worthwhile. At $1m ARR you're only spending $30k/yr on the platform, which is roughly what your AWS/Stripe bill is anyway.
There can definitely be more features too like user permissions, A/B testing, CMS, analytics/tag manager integration, etc, etc that continue to deliver value / save you time/money/effort as you grow.