The most interesting part in this poll I find the console numbers: one out of nine 360 owners bought a HD DVD add-on drive.
I believe this means about the same ratio of PS3 owners use the console for BD playback - maybe a bit more since there are no options not to have it.
My guess would be 15% max...

If true, this would dramatically reduce the discrepancy (between DVD and BD) in number of discs bought for each player from 30 vs. 3 to much
more reasonable numbers in the ballpark of 30 vs. 13 or so...

Diogen.