If the students were still banging down the door to program the stations, then they'd still be student-programmed...HOWEVER, that's a topic for another thread.
This is a drastic oversimplification. "How involved the students are" is only one part of whether or not an collegiate/high school owner of a radio station decides to keep, sell or LMA a license. Revenue generation...both direct fundraising/underwriting and indirect alumni support...is probably the biggest determining factor, assuming that it is a factor at all. Hard for a college to sell off something that's making them money (by which I mean actually showing a "profit" in that it earns more than it costs). There's also the political factor among the alumni, the trustees and (moreso for public institutions) the reaction of the local community and, often by extension, local elected officials....or any combination thereof. Also depends a lot on how integrated the radio station is with the school's public image (aka "marketing") and especially with its course curriculum.
That's why, for example, Emerson College will never sell off WERS. It's both a major part of their image, a major part of their TRF (TV/Radio/Film) course curriculum, and also a major selling point for alumni donations, too.
Similarly, AFAIK the WUMB network is financially self-sufficient so even though there's no real connection to the educational aspect of UMass Boston, there's little reason for UMB to sell off WUMB; it would offend the community (and the WUML/Lowell Sun debacle has shown that listeners can and do get elected officials involved with such things) and it simultaneously brings prestige to the campus. Small upside to keeping it, no downside, and substantial downside to selling. It could happen, but it's unlikely.
Conversely, KUSF was popular in the community of San Francisco...but USF was a private school, not public, and had no marketing around the station, no course curriculum, and worst of all: multiple paid staff being subsidized by the college (I don't think KUSF was fiscally self-sufficient...I could very well be wrong, but I don't
think they were) but very, very few students involved. In retrospect it's surprising USF didn't offload the station sooner...it had no real or perceived benefit to the parent institution.
I'd prefer it if all of the H.S. & college stations were programmed BY the students!
And unless you're prepared to make some pretty hefty donations to the parent institutions, then you are but one voice and not a very loud one. If you can demonstrate that student programming garnishes a lot of listeners (which, statistically, it does not for the most part...there's exceptions but they are few) then you might represent multiple voices and thus you would be "louder". But otherwise, well, either it's a lot of people talking or a lot of dollar bills talking, or it's screaming at the wind. (shrugs)
90.7 from Portsmouth Abbey and upgrade that.
No idea if Portsmouth Abbey would sell, but last I looked at it, 90.7 is completely hemmed in by WRIU 90.3 and by WBUR 90.9 (also to a limited extent by I.F. spacing from WWBB 101.5). I don't think it can be moved nor can it increase ERP in any meaningful way...and the current signal is badly affected by terrain; IIRC you can't even really hear it in Warren/Bristol very well, nor in Newport.