I fail to see the problem with making a car's interior someplace you enjoy?
By some of the posts above, I would assume that people don't even have nice sounds in their cars?
I don't know about others, but I hated being without my stereo, and I upgraded my speakers, and I fitted a smaller steering wheel because the factory one was too large. Because I made some improvements to my interior, which are not performance related, does that make it ricey?
Personally I don't enjoy looking at my factory interior, and I will be changing the colour to match my own preferences. If I'm spending a lot of time inside the car, I want to be comfortable.
I'd like to whip the pants off every other car out there, but that just isn't going to happen, so I just want to enjoy my comforts whenever I get stuck in traffic.