1. A real oldie, something from the 1960s, a kisslock, striped lining, the whole thing.
2. A couple of Madison top handles (preferably Copley) that are not black, brown or navy.
3. Something from the 90s in unusual bright colors.
4. A large bag - a hobo, Taft, a duffle sac, etc. - in burgundy or cognac (that would be one of the generations of British tan, very orangey)
But given that I am an extreme bottom feeder/cheapskate, I am unlikely to pay the price that those bags command. I do get lucky on EBay every now and then.