I bought a 40 because the cops were leaving thousands of rounds of brass on the range. Figured if cheap surplus 9mm ran out the buckets of 40 brass would eventually become the cheaper stuff to reload. (try finding some cheap 6.5 x 55 swede) As a bonus the Beretta 96 magazines fit the model 92. I have a few politically correct 10 rounders for the 96 that will hold 12 9mms. If more than 10 rounders ever became completely taboo I'd have been able to shove 12 rounds into my model 92...who counts rounds going in after all? Fill em til full, shoot em til empty!
What really makes me angry is finding a 10mm. I've been looking for a non Glock/non 1911 10mm that doesn't require a mortgage and can't find one.