I wasn't trying to start a debate either. I just stated that I would seriously take 3 for that price (10-11k) while at over 50k$ for 3x P45 it's a bit difficult to justify for 3 year old technology that may or may not suffer from color casts and centerfold issues.
Anyway, it's great if you don't have to take off the digiback if you switch between camera.
And also when working in two markets it saves you a lot of trouble with travelling if you can leave the backs/cameras/lights at each site to travel light. The Pelican case for the Mamiya RZ alone is so annoyingly large I could do without it when travelling.
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.