Maybe that specific item seemed reasonable to you, but what does a Tiagra cassette cost? And when I said lower end I was thinking Centaur, which is at least twice that. Forget about Chorus, if you could even find a 10sp Chorus cassette anywhere. It's the same for just about everything Campy. Maybe the low end seems reasonable, but compared to Shimano it isn't. That said, all of my road bikes are Campy.