We have a 2012 back country 18f which is 22 feet. We now have two kids one is 5 the other is 2 months. We are looking at trading ours in but it seems the only size that will work is 33 feet with bunks...
Depends! Where you camp the most can you fit the bigger trailer? Do you have enough TV for the bigger trailer? Does the price for in your budget? Does the floor plan work for you? Are the tank capacities sufficiently large for your intended use/needs?