Well, maybe

I do understand the logic you're using. It just seems to me that, if GUCs had instant guaranteed confirmability, a lot more would be chosen, and ultimately used, particularly on last minute bookings. I think that many families going on vacation would want to confirm UG space in advance, and wouldn't want to risk not getting the UG or not sitting together, so, they wouldn't choose the current GUCs as a Choice Benefit, and many go to the gate and probably go unused, and I'd bet, many are forgotten and simply go to waste.

Somehow, the little voices in my head can see it both ways. The bottom line is, that, it ain't NEVER gonna happen! Too much revenue at risk.

I think the simplest answer is that, Delta will never give you something YOU WANT - if it costs them. So, the argument that they should offer us something for free just because it might make us feel a little better about our "so called" Loyalty, when it CLEARLY would cost them some lost J sales, doesn't fly.