My father bought a TT in 1983. Used to pull it from home to a COE campground - about 130 miles - he would leave it at a storage lot in the marina all summer - then tow it home.
After mom went to the nursing home with Alzheimer's in 1994 - he only took it up for a couple trips - and it sat in the back yard.
In 2010 my brother took it out to the lake near home and set it up as a fishing cabin.
It still had the original tires on the TT - and there were no signs of tire wear. Probably less than 5,000 miles on the TT in 27 years - but over 1,000 nights of use.