I've recently built a Cotic Road Rat with 8-speed Campagnolo Record + Avid BB7 disc brakes as a complement to my Pedal Force ZX3. I wanted a second bike with clearance for slightly wider tires, and I wanted to be able to do a brevet even if something happened to my ordinary road bike.
The winter 200k:s that are organised here in late February was another reason to build a brevet bike with room for fenders and studded tires.
On the other hand, the "Me want that new toy"-feeling had nothing at all to do with this.
