Also a strong believer that bigger is not necessarily better. This past year we made the move from our ROO 23SS to a Rockwood Ultra Lite 2604 and it still seems like a mansion. Agree that many, many feel that you must have at least 30' - preferably lots more with many slides - and at minimum an F250/2500, preferably an F-350/3500 to be comfortable. We are more than comfortable with our 26' - and could be equally happy with our HTT had it not been that old age crept up on us and the additional set up was becoming a problem. IMHO, if you and your style of camping works with 15' or 18' or 24'....try to ignore the ones who believe that bigger is better. Not all of us want, need or can afford Buckingham Palace.