Or, just buy an old one. Renting costs ~$100/day (and that doesn't include the cost of RV parks, fuel, etc.). You can buy a travel trailer for not much more than a month of renting, if you don't mind an older one.

Buying a new RV would be madness, of course unless you're really sure you want to live this way and have a lot of spare cash laying around. They depreciate at an incredibly high rate. My first motorhome cost a bit over $30k when I bought it (it was 7 years old when I bought it), and I sold it last year for $12000, after living in it for most of the six years that I owned it. If you take your time, and shop carefully, you can find really great deals.

But, yeah, it's definitely a major life change, and one that maybe shouldn't be dived into without careful consideration.

Yeah but then if you don't like it you're stuck with an old travel trailer or RV to try and sell(hard) or store until it rusts away(space/money).

Spending $3000 to validate a pretty huge lifestyle change isn't that much really.

We got lucky that we really enjoyed it when we bought ours but I could understand a lot of people finding the lifestyle ultimately a lot different from what they expected.