Best two days of my RC life, the day I bought my trailer and the day I sold it.
They're a major PITA in every way outside of sitting at the house or field. Finding a parking spot anywhere you go, even at some fields not to mention the hotel and steakhouse.
I bought a Montana van with blown head gaskets 3 years ago for a song and repaired it and now have driven it for years, including a trip to the Nats and it gets 26mpg. My truck sits at home and collects dust as it gets 16 mpg, 12 towing that damn trailer. The van, with the seats removed, 3 airplanes with stabs on isn't a problem along with all the gear for two guys and luggage.
I now use this minivan and it's the best of worlds for me, the guys that buy a big truck and then add a shell to the rear might have well bought a van. The only thing that truck can do (RC wise) is tow that big trailer. The van can even tow a small trailer easily. During the flying season I often leave my airplane in the van for weeks at a time because my flying field is on the way home from work and I can stop in and fly a flight. I bring the batts into the shop and charge while at work.
I'll likely never own another trailer but I've had my eye on a Ford Flex for sometime now..........................
My kids think I should pay for their college before airplanes, the nerve of some kids........