It would be helpful to break down pitching vs position players when looking at post-JUCO outcomes. My sense is you see more fairy tale endings with pitchers, and fairy tales cloud the analysis.
About on-campus housing: At some schools (maybe just the ones we bumped into), the coach needs to keep a block of beds occupied. At two schools we visited, I noticed the discrepancy between number of baseball beds and number of lockers in the clubhouse. The coaches explained that in ways that seem honest in retrospect (one took on kids they knew they would redshirt, the other drove some kids off). Fall rosters of 60 and 45, respectively.
Like anything: Ask open-ended questions. While the coaches I talked to were selling their programs, they were also very honest on direct questions. But you need to take off the happy ears and listen/accept.
Junior colleges are public institutions, and you may find that you can get ahold of their budget online.
“Nobody is here to teach you have to learn it” — this is good advice.