This is off on a bit of a tangent, but this has made me curious what bindings people do ski on. Are your skis mostly systems or flat, and do you care?
Personally mine are mostly systems of one sort or another, depending how you count. This is really because all my skis are on piste carvers, if I were skiing more off piste, backcountry, powder I would likely have a pair or two of fatter skis mounted flat (sadly in Ontario groomers are the name of the game, and I'm not going to buy a pair of skis that will only get use for a week a year at most when I go out west).
'03 Head i.C160 w/ Railflex - system
'05 Head i.XRC 1100SW w/ Carve Plate - not really marketed as a "system", but still requires Tyrolia bindings, so it really is
'04 Atomic SL:9 w/ Race:412 - again, not marketed as a system, but requires Atomic bindings
'06 Head i.SL-RD w/ VIST plate - only "flat" ski I have. I believe you should be able to mount any binding on it, but I haven't really looked into it since I'm putting Tyrolias on regardless.
So that's 1 system, 2 semi-systems still needing specific bindings, and 1 flat
What does everyone else have?