14 teams didn't save us this go around. So we spent 9 years splitting the crumbs 14 ways for nothing (ok, not nothing - some travel savings, too and I guess maybe the overall size of the tv crumbs was higher overall with more product).
I say go as small as possible. And if we get robbed again, we're either gone (great) or as a remaining member of CUSA we lobby for bringing up another FCS school (preferably right in the middle of the recruiting footprint of whatever conference has raided us).