Honestly, the biggest issue for Weber isn't attendance, community (i.e. fan support), or programs. We all know that if Weber were to make the jump these things would either fall into place, or are already ready for the jump. It is money. Weber has one of the smallest athletic budgets in the Big Sky.
This is also a serious issue with UM. I believe UM wont be accepting a bid because of their monetary woes. As much as they think they can compete, which I believe they can, they don't have the money to consistently fund their programs. UM students are going to take the brunt of their jump, that is if they even jump up to the WAC. I wouldn't doubt seeing at least a $75-$100 increase in student fees, just to support an AD's wet dream. The WAC, I know Benson is making fairly lofty promises, but the 5M isn't a sure thing, I doubt the WAC gets nothing from Nevada and Fresno State, if they do it'll be far less than 10M and it'll only be around ONCE. Also, that money will have to be divided between the other WAC schools. So that doesn't leave much for UM.
UM constantly is wetting themselves over Boise's success, but logistically, financially, and administratively I don't see the parallel between the two schools. Boise is juxtaposed with TCU, UM with App State. There is a huge difference. Honestly, I think the WAC should fold and the best schools left join the Sky. There really isn't that much glory being invited to the Outhouse bowl.
As for Weber, monetarily there is no way. I would love playing NMSU, USU, UI, and SJSU every year though. There would be some great rivalries and it would become a very strong regional conference. Honestly, I think that the Sky and WAC should merge, but first get rid of La Tech, Hawaii, SAC, and Portland State.