We bought a Rockwood last year, picking it up on the labour day weekend. There were lots of clearance out there. We paid $28,000, the same trailer was on offer for $38,000 at a different dealer (he said he'd come down a couple of thousand, but not $10,000). We bought from a country dealer with minimal overhead and no commissioned staff. There are deals to be had. But you have to look.
I used autotrader.ca and got lots of comparative prices, on both used and new trailers. There is also that RV Trader magazine.
One thing I learned about the Canadian market, the volitile Canadian dollar makes a huge difference, our 2009 trailer, bought by the dealer in 2008, then the dollar was high (over par) but then it dropped down, by 20%, meaning the same trailer, bought later would be 20% higher, on a $30,000 trailer, that is $6,000 - due to different rates of exchange.
Good luck, and haggle well.