It's a slippery slope!! This is how my wife and I got started. We thought we might like the idea, but weren't absolutely sure, so we hired a van for a fortnight, became sold on the idea and bought a second hand van not long after.
We're on our third van now, and wouldn't be without it.
Good piece of advice from the previous respondent about signing up for this club.
Have fun!
Eribiste