I felt a little pang of regret when I found "Montreal Expos" under "Historical National League."
Bivariate data can be used to create any number of useful analyses. For example, one could create some measure of offensive efficiency per game by plotting runs vs the sum of hits, walks, and opponents errors. All it takes is a little skill with Microsoft Excel, the patience and skill to do the research, and a 10-year-old budding mathematician who is a sports fan and is willing to do the data entry for very little cash. I have a limited amount of the first requirement, and neither of the latter 2.
Seems like a hell of a lot of work, but thanks for the explanation, DJE and Howard.