Meltzer's reasoning around the time of Punk's MiTB deal was that it would've done a better buyrate if it had been on a big four show, since they get more casual fans attention. His deal didn't get any of those fans to buy the show, the buy rate was up but only a moderate amount and it showed a limit or something along those lines. Brock/HHH Summerslam did better than Brock/Cena (I think), so there might be something in it.
That's lazy though. If you consistently give people interesting matches and angles, they are gonna start buying "B" PPVs too. MITB just a gimmick PPV until Punk cut that promo just 2 weeks prior to the show, that's very little time to promote (he couldn't even get to the BS Report podcast until after Summerslam

).
After that the booking went to shyt - a shocker, I know - and we went back to irrelevant angles and feuds. But if you have 3 straight PPVs of interesting shyt, I guarantee you that for the 4th one there will be a big raise in buys (unless they fukk things up like with the Summer of Punk angle).
I get Meltzer's thinking. He asumes that WWE will never book things right and keep their momentum, so if they are lucky enough to stumble upon something special, they should milk it till a "big 4" PPV so they can get more buys. It's hard to argue against that but if we are going to be that negative, then what's the point
