If you only need one bed- a class A might be less expensive.
If you are not in a rush, I would suggest to take your time, constantly check craigslist and keep your eyes open. As mentioned earlier- right now is peak season commanding top pricing- after labor day you will see prices drop significantly- especially in colder climates.
We did just as I said, spent all of August of 2011 looking and a great deal presented itself around labor day. We purchased from a local reputable dealer who took the unit in on trade and did not want to store it until following spring!
