Between 3-5" MOA at 100m. I've seen worse and better, but most fall between 3-5" at 100m
The Siminov is as much a symbol and a historical note as the AK. Its also simple, tough, reliable, has a million and one mod options and is a little more comfortable for those of us over 5'10" to shoulder than the average AK.
Yes, my sister has eight, one Chi-Com, two Yugo, two Albies, two Russkies,and a Chinese pre-ban Para w/AK mag conversion. Its the only rifle she'll currently buy. Only cleans the ones she has to, the rest of them are pretty dirty, and all of them work perfectly. An SKS can be made into a very nice hunting/brush if you have the desire.
A realy good price? Like under $100? Yes. Otherwise you can still get Romos and Yugos for around $150. Spare parts are common as dirt.
$200 is about average, nice pre-ban Chi-Coms go for as much as $275, and I nearly paid $375 for a beautiful Russian non-import at a show a while back. Around here Yugos with the GL generaly go for about $199.99.