30's on a Denali make as much sense as monster truck wheels on a H2 that will never see mud and is equal to a "tuner" car with 700hp that will never see the track.

It's for looks/style/bragging rights....not safety, not "functionality"....it's for looks, plain and simple.

It's the same reason why people spend small fortunes on JDM parts for old shitty cars like mine instead of domestic stuff that does the same job. It's so people can say "I have it, and you don't, now envy me."

It is just rims after all. Just reallllllly f*ckin huge ones! haha