We checked out a 3300QS yesterday at a Denver RV America show. It was great to have a factory rep, Brad, present to answer questions. We are now convinced that the 3300QS is for us. However, Brad commented that it really isn't intended for full-time use (perhaps just extended use). His reasoning seemed to be based on the fact that it lacks laminated construction (as found in the Big Horn). Since full-timing is an idea we have toyed with, his comment was somewhat disconcerting. Is there real-world experience out there that supports his position that a "Big Horn or Better" is necessary for full-time?