For that price I would take 3.
Boris - I think we're all aware of typical pricing; presumably those posting "WTB's" have also looked at demo deals, etc. (I'm one of them.)
The issue for us is, unlike you, we COULDN'T "take 3" - no matter how good a deal it is.
Speaking for myself, if I had $30K I wouldn't be asking... I'd buy just like everyone else - or more likely, buy a demo back from a retailer. But some of us just don't have that kind of money, which forces us to try to politely ask if anyone might - for whatever reason- be looking to sell a back for less. As the poster of the recently sold P45 back (for $10K) said - they had a reason for selling cheap.
I'm not trying to start a debate - rather, just encouraging people to be understanding of others' situations, so long as those others are polite and do not become invasive.