I think so. Plenty of people around here who live in single-wides have expensive cars sitting out front, and good-sized pieces of land. They just don't care to spend money on the house - their right if they own the property.
There are just a few trailers that are obviously derelict, windows broken and roofs off, etc. Doesn't bother me - if the area gets "exclusive," they won't want us living here :-)!
On 200 acres of my own land with several lakes, two pet elk, 25 exotic dear, 5 donkeys, a dog, and most importantly, no neighbors!