Agreed. But I also believe that college hockey has a broader appeal in the areas in which it is played than baseball does. Meaning, there are more pockets of this country where college hockey is a huge deal than there are for college baseball.
When I lived in South Florida for a year, nobody gave a damn about Miami Hurricanes baseball, and they're one of the premier programs in the nation. College baseball gets totally lost in the shuffle in Southern California, despite having USC, UCLA, Cal State Fullerton, etc.. Meanwhile, hockey takes center stage in New England and the Upper Midwest.
As someone who grew up on the west coast and never cared much about hockey until attending Minnesota, I like the idea of a Big Ten hockey conference. The best part, so far, is how much it irks Sue fans.
Having seen the interest in their club teams, I would be surprised if Indiana and Illinois didn't add varsity hockey by the end of the decade, and if so, the B10 hockey conference is serving its purpose.