Cypress

Most racers I know (including myself) want the lightest stuff we can trust and can afford to replace. I won't run uber light stuff because I don't want dive into a corner and wonder if saving those extra 50 grams is going to put me in the ditch with a broken collarbone. Weightweenie crap won't get you on the podium if you're sitting in the team car with a shattered aftermarket derailleur cage because you suddenly needed to crosschain at 1300W to hold a wheel. Doubly more for training. Any time I spend fixing/replacing lightweight stuff is time spent off of my bike.

I went through a rough patch with a wheel sponsor a while back. I kept cracking their zooty high-end wheels (I corner hard) so I "downgraded" to a higher spoke count with heavier rims and immediately stopped having issues.