I'm currently looking to upsize from our 19' TT and seem to be in the same situation. Right now I think the "sweet spot" for a couples TT is about 25'(30' from hitch to bumper) for us. The 19' is perfect if I'm camping by myself but when the wife and dog come along it's a little cramped plus the dog keeps me up all night pacing around. It seems like at that length you get separate bedroom (to keep the dog out), theater seating to relax, dinette, nice size bathroom, and additional counter space....anything bigger seems to be overkill for us.