I seem to be getting hooked on the sks too! Really if you think about it they still are the "$89" rifle from the 80's if you factor in inflation.
Even in the 80's they were a fantastic deal! They are still a good deal at $300-400. Ive seen them go for a lot more too. People have discovered that they are a versatile ,reliable, accurate, easy to work on,inexpensive ammo, easy to customize & fun to shoot. The ak47 has a slight design advantage in the gas system IMO, but they're hard to beat. I've yet to ever sell one except for one AK trade.