Maybe I'm just an old cruiser. I'm looking at a motorcycle right now, and saw the one I want. The add said just had it up to 150mph last night. It had mods. No thanks. I just relate all the performance mods to a hard used vehicle. That's really the point. Cars are built for the masses. After modifications your potential buyers drop drastically, so trying to sell a one of a kind, to me it actually reduces the value, or at least eliminates myself as a buyer.
On the lighter side, one of my best friends nickname from high school is modified.