I folks I know that do true restorations do it as a labor of love; unless someone is paying them to do it. Most often the restoration is complete before the object is in service.
A "fix it up and get running" approach almost always leads to incessant diddling around and never really finishing the job right.
There are exceptions, particularly with those who like to experiment with different ideas.
The novelty of restoring and old TT is fleeting and most always expensive. But, as already mentioned RVs are a poor financial investment to begin with.
