I agree with those who say now is the time to buy. The RV industry is enjoying peak sales of every type of coach except the really large fifth wheelers. With so many baby boomers retiring everyday, the number of potential FG RV buyers goes up everyday. And those same boomers who have been traveling for awhile change their minds about the ideal RV any given day.
Out here in California, people head north before school lets out and head south to the Cal/Nev/Az deserts as soon as they cool off in late October. Can't tell you how many people we have met in FG RVs in Arizona January/February coming from the northeast or mid-Atlantic making the circuit.
Your liable to find your trailer on any day these travelers complete their circuit and decide their X foot Casita/Scamp/Escape is too small, too old, too...
Also know what you want. We tried unsuccessfully for a year to buy a used FG trailer because we expected to go see it before committing. We were beat out a number of times by people willing to buy sight unseen. Who also paid the asking price, no matter how high it seemed.
Good luck and know that once you find your coach, you'll love every minute of following your route to adventure.
Free Times: Where Will You Go In Your New Casita?