Well in a straight comparison between how many games each company averagely brings/brought out (which is what I was doing)... it does mean something :p
But yes, Rare was/is a much larger company than Retro, Monster, Next Level etc.
Not sure what your counter-argument is though (if you're making one)... Rare is bigger therefore...? Just more evidence that although all of these companies are great and have made brilliant games, they just haven't managed to achieve what Rare did... yet
I suppose if Retro Studios did have about 200 staff members they would be able to do it. Combine Monster Games and Retro Studios and maybe we'd get a kick-arse, quality, humorous title akin to a Rare classic.