Some very good points have been made. I only go out for 5 to 6 months at a time. Although it would be nice to have a longer MH it is hard for me to justify the extra 10' to haul around an extra bathroom. Especially for 2 retired people. However, you would get more under storage in that extra length. Instead of an extra bathroom, and king sized bed in an area I spend very little time I would like an office or hobby area to justify the extra length. 3 slides minimum is a very good point. Getting to my bathroom and to the bedroom while on the road with the slides in is a must.