Wheels Ever Fail?
Something else you have to think about is both brake clearance and tire selection. Lets face it here guys, 17 and 18 offer the most tire selection out there (at least in my area).
Also to point this out to everyone, for every 1" increase in wheel/rim size you lose just a 1/2" in sidewall (stiffer sidewalls handle better). So lets say your car has 15" wheels on it and you go to 17" wheels, you've increased the wheels size by 2" and decreased sidewall by 1". Just something to think about. Me I'm going either black chrome or Gunmetal center and spoke with the lip being chrome or polished aluminum in 17 or 18 (depends on which I fit the widest tire in my wheel wells with).