I buy for parts mostly, I choose my sets based on what the parts can do for me. I build only about 10% of the sets I buy and the only current set I have assembled is the Millennium Falcon because duh. I would never let a peach keep me from buying the parts I want. Lord of the Rings, Star Wars, Marvel/DC, whatever it is.
I can still recall discussing this with my best friend when Lego decided to make peaches and how anti-peach we were...I got used to it, so did he. But they don't mix. My peaches have their own worlds to play in...plain and simple.
(I will admit that I had to have Marvel's Deadpool minifig, but he's not peach under his mask in my mind anyway.)