As a non-elite, I have found that for nearly every CO flight I've taken in the last year (maybe 10 or so), I can check in just after 24 hours and snag an exit row (poor man's first class, especially 14A or F on the 737).

My question is, why? Is there any particular reason that elites don't snag these when purchasing? Or are they not released until day of and I just happen to beat the elites?

Not complaining, but curious...