That Bianchi for $375 would be about $500 in a used bike store even though it is pretty low-end. The name Bianchi gets a lot of attention and someone new to cycling will only be looking at name-brand frames. So yeah, I would never pay $375 for that bike but I think someone will pay $350.

As an aside, I bought the exact same Bianchi (but in a 53 size) two years ago for $75 on the Toronto CL....I gave it to a friend and he loves it. He started commuting on it every day and even gave up his 20 year smoking habit in order to better enjoy riding his bike.