^The problem is that not every issue of every title GET's TPB-d.
What this is going to lead to is a vast IMPLOSION of comic titles (It's started already, but will REALLY take off when they go to Trade-only publishing.)
Please Explain!?
Look at the situation as it stands now. How many books are there out there that AREN'T being "traded", either partially or entirely? Quite a few. At one point we were promised that the ENTIRE run of Thunderbolts was going to be traded, for example. Same with Avengers, X-Men, and so forth.
The B and C list books are disappearing from the monthly line up entirely, as the publishers focus on the fame few "A list" characters that "everybody knows".
If/when they stop publishing monthlies altogether, I expect the entire B and C lists to basically disappear.