they aren't really called "trailer" homes anymore, the construction methods are alot better so they call them manufactured homes......unless you live on 8 mile in detroit
my sister and her family are military and have a very nice "double wide", when they were in the market for a new home they did tons of research and concluded that it was the way to go. they bought a 6 acre piece of property, cleared a bunch of trees, poured a slab, and had their +/- 3000sqft home delivered....when they finally moved in they were around $105k total, so she has a brand new modern 4 bedroom 2 bath house....the master bath is bigger the living room in my house.
walking through it i was very suprised how quiet and stable it was, i think "trailer" homes have come a long way
my father also has one in the mountains in pa which he and his wife plan on retiring to......it's as nice as their home on the lake near cleveland.....only you don't get in trouble for shooting guns off the back porch