I like cars modified, I can appreciate stock appearing cars but I'll walk past them to look at a car that has been modified to suit the owners personal tastes.

The fist thing that people did with all the old muscle cars was start modifying them back when they were new.

Now it seems like everyone wants they're car to look exactly like it did when it rolled off the assembly line.
The only reason for doing that is you're worried about "Investment Value" more than making a car like you would have seen back in the day when they were all over the streets.