You know, prices on yugos are getting stupid. I just sold an unnissued brand new one. person paid $475 ($450 to me plus $25 shipping). Almost 18 months ago i sold a VGC one for $275. 4 months ago, At the concord NH gun show a dealer had a new unnissued for $399. I offered $350 (because I just sold one for $450 and saw no risk). He told me no.
if you look at Gunbroker, only the GC ones are at $300 and below these days. (need to inlude shipping in your costs) This is not to say you can't find private deal for less. I landed a russian without a bayo for $300 at a gun store recently. He wanted $350.
The only CR dealer that I know of that has stock has only cracked stocks available. ( and they don't ship to mass). They want $289 +shipping which would be $310
Long winded answer..... $320 is fair these days based on condition. (VGC, all matching, original configuration, no bubba). If it has been sitting that long, I would take a good look at it. Make an offer. At $275 grab it and run. At $320, if it is in good shape, don't lose sleep over it. It will be at $350 most likely in a year.