I've done Europe and LATAM. Currently in Ecuador spending $2,000/mo. But I have spent significantly less. Nicer places and amenities make it feel like real life and not just something you're doing for a few months. It's better for mood.

I have spent a lot less on Airbnb's in the past. If I like the place enough then I pay directly with a wire transfer and go month to month. And I attempt to negotiate.