Personally I think it looks ******** on the fixies you see in the pics that have a fiber wheel up front and then a spoked wheel in the back. Personally if I wanted to show everyone that I was so rich I could afford fiber I would do both. I think a disc wheel up front and spokes in the back would look even worse. But then fixies are built to personal preference and no two have to be the same so if you want a disc up front and a spoke in the back then go for it. I bet the person selling the bike has already found out how much a front disc sucks on a windy day. Thats why they are keeping only the rear one and letting the front one go with the bike.