Let's offroad / mountain bike / mtb / ride dirt

I hesitate to use the words 'just get' as I feel they're heavily overused on here, but just get an Isen GOAT already

I've looked at this option in depth, issue is that it's a really expensive route to take, which is fine if you know you love MTB, but if what you want is a bike that is "good enough" to try it out, and sell if you hate it, it's not.

Buying an OTP is, I think, the route forward. But what?