Buy now and finance or wait and pay cash

So here is a thought.. Seems that with the current RV "bubble" folks that never camped, or camped very little are before, are buying RV's. I'm thinking that in a couple of years some of these people are going to put their slightly used rigs on the market and there is going to be a glut, and prices for used rigs is going to drop. Sure some will have been parked and ignored to become moss covered, but some will be in new condition and ready to roll at a much lower price. So waiting might be a good choice. OH.. Again this is just a though, I am not doing a "Jean Dixon" imitation.