Stay away from special designs .Folding trailers mean more things to go wrong and you still need the same space for storage !!!
While I do agree with you, here is something to think of. The model I like is a 2619. 26' long open and 19' when closed. That is 7 feel less to store it in. It will fit in a 1 car garage. The mechanism has a lifetime warranty. To top it off, it sleeps 6. Compare that to a 19' trailer with no room, sleeps 2, possibly 4, and has the aerodynamics of a shoe box. Plus the Trailmanor has two permanent beds that are out of the living space. So with kids, there is no bed to make up, no bed taking up valuable living space, and security you will never get with a pop-up or a hybrid trailer. Camping in cold weather will be no problem since they are easy to heat.
I have been camping since I was a little kid. Theresa has too. My father has owned 4 motor homes (two class A's, a 1972 Banner 28' and his current 1998 34' Coachmen Catalina, and two Class C's, 1977 Lindy 19' and a 1986 Coachman Classic 27') plus, in a moment of retardedness, LOL, a Rockwood pop-up. Theresa's parents have owned two pop-ups and two trailers with the current one a 28' Sunline.
I know my way around maintenance with RV's since dad never had the money to buy something new, we had to deal with repairs so I can handle most things myself.
As I said, I do agree with you on buying specialty trailers, but with the lifetime warranty of the torsion system on the Trailmanor and the simple design, I feel it would be a good investment. Small and light enough to cover alot of ground in a Short period of time, but big enough to grow as my fiancé and I continue our life together. Something you just can't do with a pop-up or a small trailer.
Tom