One way to look at it, at least interesting to me, is to look at the number of games played by the college team.
Let's say it's 55 games last season.
Use 2.7 plate appearances for position players. Take the team games and multiple it by 2.7 and see what you get. In the case of 55 games, it's 150 plate appearances. Now look at the college roster and see how many players on the team had 150+ PA in those 55 games.
I bet you that it's around 8 player. Maybe 7? But also could be 9.
The point is, in college baseball, much like HS baseball and MLB, you have 9 starting offensive players and everyone else is there in case of an emergency.
The way college baseball rosters are constructed, it means around 9 position players are basically just cheerleaders riding the pine all year.
It's the same for pitchers. Most college teams only rely on 4 SP to be in their rotation. And there's maybe 4 or 5 main guys out of the pen. So, that means there's 8 or 9 pitchers who are there to maybe mop up in blowouts.
To echo what others are saying: Go somewhere where you have a reasonable shot at being one of those guys who actually play. Otherwise, you're just going to be a spectator and burning off your eligibility.