Key variable in ACC expansion yet to play out...

I think the biggest part of the ACC expansion saga has yet to play out… will the NCAA approve Championship games for conferences with less than 12 schools?
If the ACC is successful in altering the rule, we can assume the following:
(1) The ACC and Big Ten will stay at 11 in hopes of landing the Golden (Dome) Lottery ticket.
(2) The Pac 10 won’t be put in a position of needing to expand for extra revenue. This is huge for them, since Colorado is the only viable candidate for expansion anyway.
(3) With 1 and 2 being true, the Big XII and SEC are in no threat of losing a school or schools. Certainly, Missouri, Colorado and various SEC teams may otherwise be targeted.
Hence the ACC, Big Ten, Big XII, Pac 10 and SEC will hold…
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Given that, I have these questions:
Why would the Mountain West dilute their revenue pool by expanding to 12, when they could add Nevada and Boise only? The addition of two schools gives them a championship game, an extra bowl, low travel costs, and erases any criticism for giving in to the partial qualifiers at Hawaii or Fresno.
Why would the Big East stop at 8 football schools? Even if they added football affiliates to get to 10, they could have a championship game and the revenue.
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I think this Championship rule is going to have the biggest impact on what happens to the WAC and CUSA… hence, what happens to our beloved Ponies.
If the ACC is successful in altering the rule, we can assume the following:
(1) The ACC and Big Ten will stay at 11 in hopes of landing the Golden (Dome) Lottery ticket.
(2) The Pac 10 won’t be put in a position of needing to expand for extra revenue. This is huge for them, since Colorado is the only viable candidate for expansion anyway.
(3) With 1 and 2 being true, the Big XII and SEC are in no threat of losing a school or schools. Certainly, Missouri, Colorado and various SEC teams may otherwise be targeted.
Hence the ACC, Big Ten, Big XII, Pac 10 and SEC will hold…
===================
Given that, I have these questions:
Why would the Mountain West dilute their revenue pool by expanding to 12, when they could add Nevada and Boise only? The addition of two schools gives them a championship game, an extra bowl, low travel costs, and erases any criticism for giving in to the partial qualifiers at Hawaii or Fresno.
Why would the Big East stop at 8 football schools? Even if they added football affiliates to get to 10, they could have a championship game and the revenue.
===============================
I think this Championship rule is going to have the biggest impact on what happens to the WAC and CUSA… hence, what happens to our beloved Ponies.