Drums require more detailed tuning than guitars, basses - pretty much all instruments bar pianos.
Drums are an unbelievable amount more difficult to play than typical "musicians" take them to be =D, because there are thousands more techniques to learn, study and master, so you know ...
Drums are also an aesthetic attraction to women - male drummers are to girls what girl bassists are to guys. SWEEEEET
Although! if you're in the gig to pose, sod off. Hah.
Drums (and thus percussion in general) are an instrument that, unlike the trumpet or piano, can be transfered seamlessly to any genre of music.
And drummers are the most modest of musicians :P real ones, anyway. I'm not explaining it, just accept it.
... Wait, weren't you wearing your clothes a second ago?
No, wait! no, that's uh ... that's, not a drumstick.