17" vs 18" wheels (not a tire thread)

[tommy583]

I have considered getting 18 inch wheels for my non S. But I can't seem to pull the trigger. Is one inch going to make my car look or handle that much better? Is the added cost of the 18 inch tires worth it? I'm not sure. I seem to spend enough money on it already without the more costly tires I seem to replace every three years. Here are a few pics I took. My car silver with 17 inch wheels. My buddy's grey S with 18 inch wheels.