Inviting NDSU is a no-brainer to me. Strong football program, a decent basketball program. Same with SDSU but perhaps inversed.
It would be malpractice to not take a serious look at both
1) UNLV
2) Boise State
3) San Jose State
4) Fresno State
5) Colorado State
6) Hawai'i
7) Nevada
8) New Mexico
9-T) San Diego State
9-T) Wyoming
10) Utah State
11) Air Force
You're adding NDSU and SDSU for quality football and basketball programs on the upswing, not necessarily for the TV markets, although you have to factor in potential growth for both schools as well