Sks is 1/4 the price, can be better quality, milled receiver, better sights, much better sling, faster to reload, and just as reliable as the T81.
BUT the T81 is cooler and better for the zombie apocalypse. That being said, I bought one.
I like the SKS, but it's no T81. The T81 has a much better safety, is lighter and handier, takes magazines without stupid duckbills, and has adjustable gas system and pistol grip standard. It's a more feature rich gun.
It would be like saying a Remington 742 is better than a FN-FAL because it's cheaper and shoots the same ammo. That doesn't make it true to most people who would have to use one.