I don't have so much of a problem with Akron and Buffalo. Why did you choose to go all the way back to 1990?
EMU, however...
1990 was arbitrary, just grabbing a snapshot of the last couple of decades. Buffalo joined the MAC in 1992 and has had 1 winning season, where they had 8 wins. In the other 13 seasons they have a total of 31 wins, or 2.4/yr. You should have a problem with them.
I'd be the last person in the world to defend Akron, but putting them in the same discussion as EMU is ludicrous. I believe the Zips have one more modern-era MAC FB title than we do, their stadium is very nice and they are in a fairly large city. If they start winning, they'll match our attendance. Plus their BBall program is obviously quite competitive.
I feel dirty even writing it, but it's true.
Akron isn't as bad long term as EMU, but is worse lately. Their location, facilities, coach, and bball team are irrelevant, this is about football performance. Three 1 win seasons in a row, only 6 wins in the last 4 years, only 1 was against a team other than Buffalo, EMU or FCS. Last road win was @EMU 10/18/08. You get the idea. It's one thing to be the worst team in the conference, its another thing to be the worst in all of FBS and lately Akron has been a contender for that crown.
Sure, Akron won a MAC Championship, in a year they finished 7-6. Buffalo won one too with an 8-6 record. Not exactly world beaters. More importantly, neither team has had a winning season since.
Akron(1992) and Buffalo(1998) are the MAC's 2 newest full time members and they have not contributed positively to the competitiveness of the league. To this point, and we're going on 14+ years, they are both bad football adds. UMass is in that same mold, it concerns me.
I do believe EMU is the most hopeless of the group but at the moment they are all equally terrible. As I said, they don't need to start winning championships, they just need to be able to compete and beat someone other than themselves and FCS teams.
If the MAC can get to a point where the top half keeps getting quality OOC wins and the bottom half (except EMU) can not go 1-3 or 0-4 in OOC every year then we'll be a very formidable Go5 conference.