I have two main issues with it. First, many dishwashers will scratch the surface (ever notice that eventually your glasses get marred around the sides?).
Secondly, what I tell people is, if you are going to spend $125 (or whatever…) on a bowl, are you really going to put it in the dishwasher?
I feel the same way you do but I have had people refuse to buy a dessert dish ($40.00) because of the dishwasher issue. I just wanted to make sure that there was no problem with heat (non that I could imagine) and just let them know that the dishwasher will do the same thing to glass dishes over time as it does to glasses. Thanks!