I think more and more people are starting to say this.
Fact is, aluminum bats were not only brought in to save money, but they were also brought in to increase offense. It's the Babe Ruth principle- people like to see home runs, which means more popularity.
Eventually, it created a form of baseball that was artificial to the point where it was more like slow pitch softball than baseball.
The thing about cost- like I've said before- college baseball teams used wood bats for years and it didn't break the budget on the athletic dept. And nowadays, you have high school players- and even at levels below high school- playing in wood bat leagues and that sort of thing. These metal bats are very expensive- typically more than wood bats by a good bit. And it's not like the aluminum bats are permenant bats. They may not break- they actually can by the way, but they do get worn out and each bat has so many "hits" in them. I would guess that college baseball players in general go through at least two bats a year.
I think baseball players- especially in the SEC- want to use wood because it makes them more attractive to scouts. And you know every pitcher wants them to use wood. The scouts want to see them use wood so that they can evaluate them better, so why not go to wood instead of spending thousands of dollars to make aluminum bats like wood?