Yeah I went with such small tires because...
1. I had 13'' rims laying around and tires for 13s are a lot cheaper than 14, or 15 which are the other rims I have.
2. Skinny tires are actually better in snow since they cut through instead of riding over. But not so hot on dry pavement.
I have the WS-50 which is the hardcore snow tire. I was thinking about getting LM-22s but I decided it was a waste of effort since I work in a garage I can just switch back to my old rims whenever the snow melts.