Is a FR product better worse than THOR?

I know from previous research FR products where not of the best quality but priced accordingly. From what I gather THOR is at the bottom. Looking at the upfront cost and resale it may not make any sense to go with a high end unit if I plan to flip it in 5-7 yrs. Weekend/vacation use only. Case in point I can prob get a late model ( 1-2 yrs old) FR gasser for the same price as 5-7 yrs old Fleetwood. By the time I go to flip a 5-7 yr old Fleetwood it's 10-14 yrs old and less desirable. I don't know what % of buyers are cash buyers but it does appear units over 10 yrs old and over 60K miles become harder to finance - thus lowering the value I would assume. Typically I am a buyer of higher end products ( Boats, ATV's, trucks etc..) but it really doesn't appear that in my price range $60-75K that much quality exists. If it does the unit looks so outdated my wife won't step foot in it. I know that buying an RV is a money loosing deal but just trying come up with a strategy. BTW I am very handy and can fix most of the little items that pop up. Also what is up with all these 5 yr or less old gassers with upholstery that looks terrible/ratty - Fleetwoods included???