Picture differences between G10 and S1?

[victimsofadown]

So today my wife said those words that EVERY guy wants to hear '50" is too small, we need at least 58"'

I see that (for some REALLY weird reason) the G10 maxes out @ 54", and the G15 maxes out @ 50" however, the S1 goes to 65"

My bewilderment aside, I realize that the S1 does not have (flawed) 24p playback and the THX mode, that the G10 does, I just wanted to make sure that the picture quality/setting is just as good on the S1 model as the G10.

The $200 rebate expires on May 2nd, so if I'm going to wait the picture quality better be the same!