Well.... maybe I am a slow knitter.
I made it through 4 rounds (i.e. 4 pairs of socks) last year- and I'm actually juuuuuuuust finishing up the socks from Round 5. I basically stop knitting anything once the weather turns nice and I spend all my free time gardening. I'm not sure how many rounds of Sock Madness I'll make it through this year since the snow is pretty much gone and I already have hyacinths poking up in my front flower bed.
By the way, that thing on top of my cup of coffee is a stroopwafel, the (un)official food of Sock Madness. I found a box at Stella's in Lyme, NH. It's two thin waffle-y cookies with caramel on the inside. You warm it up above your steaming drink. It's crazy good. I realize now that the European knitters are, in fact, doping and are hopped up on caffeine and sugar. That's why they're always the fastest knitters.