BK, for what it's worth, we went from a 25 foot Cougar (Keystone) trailer to (one year later) the 38 foot 3400 Montana. We've NEVER looked back. You can see what we tow it with by our picture and signature. Others are right, go to the shows and check them out. One thing we did, that was very helpful, was go to a dealer that specialized in Montanas. He had virtually every model on the lot that Montana made. We spent half a day going from one model to the other. For us, we just kept going back to the 3400 time and time again, and finally decided it was the one for us. And it tows just fine. Campgrounds are now becoming more "big rig friendly" because there are more of them. And, as everyone says, make sure you get one that you feel is right for you.
Enjoy whatever new rig you get.
TK