The one thing I rarely hear being discussed in these threads is the issue of grades and their impact on the affordability of a school.
All of the points being made regarding academic performance and a recruits potential attractiveness to a coach are very valid. Certainly the new academic reforms make it even more risky for a coach to recruit a player who is an academic risk. In addition, the player may be Pujols-esque, but he's useless if he's academically ineligible.
Always keep in mind that for many families, the bottom line cost of attendance is a limiting factor in the college choice. If a player is being recruited at an out of state program or a private school, a 50% baseball scholy probably leaves mom and dad on the hook for $10,000 to $20,000 per year in costs.
Academics can be huge as a means of eating into this cost. For example, many states have a waiver of out of state tuition based on academics ( normally around 3.5 GPA). In many/most instances, this academic money may be more than the baseball money. Academic moneys will usually kick in in the 3.0-3.2 range, and SAT/ACT scores come into play as well when determining whether academic money can be succesfully blended with athletic funds.