With a trailer you have
+ Double the hook up time which is really a PITA if the weather is nasty out and just a bother the rest of the time
+ Another item to license and pay insurance on
+ Trailer bearings and brakes take more maintenance than wheel bearings or brakes on a toad do
+ Another item (24' long) to store either in the RV park, at home or paid storage
+ Trailer is more weight (2,500 - 4,000#) to tow around and not needed especially if you have a class C MH
+ The expense of buying the tailer
+ And I'm sure there are more reasons
In two years I've only had to unhook the toad twice. Actually I only remember doing it once, but then I usually never learn something the first time, so I'm sure there was a second time.......
Bill