Here is the difference, between the WAC, MAC, and C-USA non-Saturday games versus the MWC non-Saturday games:
Ratings. People will still watch these ESPN games a lot more than you think. These non-Saturday games get decent ratings on ESPN and ESPN 2 because people like to see a college football game if its on. They don't really care to search for a game, but if the game is on ESPN, they will watch it. Most sports fans know their ESPN and ESPN 2 channel numbers by heart, and will watch whatever is on there if they like the sport. Almost every single hotel in this country carries both ESPN and ESPN 2 among their channel lists. We won't get humongous ratings like the other big conferences, but we do get people to watch the games. I watch weekday games on ESPN because I can and I like the quality of the ESPN games. Plus, most are in HD, so they look awesome on my TV, I am not alone in this.
The MWC has an uphill battle going on right now with their channels. The Versus and CSTV channels are not that well known and get tiny ratings, most often getting "zero" ratings, drawing in thousands of fans, not millions for their Saturday games, imagine what they get for their weekday games...
If you are going to play weekday games, then play them in front of a decent national audience and not just for some hardcore football fans across the country. The mtn isn't even known to 99% of the country, playing a weekday game on there makes absolutely no sense, even if its on the Friday after Thanksgiving.
I remember several MWC people and fans telling everyone that they were moving away from ESPN to get away from the non-Saturday games, and yet they still play them today, without ESPN on their side...

Not a good business decision IMO.
I understand why the mtn is not releasing their games to the local affiliates. This move was made so that more people will try and get their mtn channel, but I agree, it is a dumb move and it pisses off a lot of the fans in your conference.