Veto, just to be clear, I don't think anyone here is saying "don't make mods" to your car (or house as you pointed out), just simply that you should be aware of what those changes may do to the resale of your vehicle. I can understand completely why a dealer may be weary of a car with mods...how do they know that they were done properly? Does the mod limit their ability to sell to a wide audience (performance mods will likely rule out a large portion of potential buyers)? So mod away my friend...

Ah, but MAYAman brings up the difficult "tasteful" word into the mix. It's impossible to judge what exactly is tasteful. Elegant vs tacky...I used to think I knew, but I'm seemingly losing touch with the meaning of tasteful. For example, I'm really not a big fan of the "chrome everything, oversized wheels, spinners (are we done with this yet?), outrageous sound systems"...but I think that's the taste of a different generation. So are these mods distasteful? Apparently not to the younger car gen. One thing that will not change however is a well crafted job.

While driving to the in laws for Xmas, I stopped for some coffee along the highway and parked next to this young guy with a Honda, painted up in bright orange flake. It had all the skirts, bumpers, and wing "additions" that are so typical of tuners today. But on closer inspection, I have to admit, it was very well done, and well crafted and I had to admire it for that. It wasn't my taste, but it was a beautifully done piece of work.

In the end though, the point is right, if you want to resell your car, and you are concerned about your resale value, mods can be a negative factor.