I suppose it's all subjective anyway, but I'm beginning to wonder whether I'm going to regret going with the 18" aero wheels instead of the 19" upgraded wheels on my AWD. I've had a tinge of regret from not upgrading the wheels on my P90D, but that faded over time. Part of my reasoning for sticking with the aeros is that (a) I have the option for better mileage and (b) though smaller, they seem to actually be a nice looking grayish wheel underneath (to go with my MSM ordered car). I still have my edit button, so I'm tempted every day to switch. I'm trying to keep the cost down though. Has anyone regretted not getting the upgraded wheels? Why?