I asked the same question on here recently on my Condition, Condition, Condition thread, in my book condition is king I can not see the point in buying a poor condition, poor sounding record no matter how rare it is, what's the point in buying a record that you can not play it's pointless, the condtion goalpost is often moved on the big ticket items yet it should be the same condition rules for all records, someone mentioned the cracked copy of 'The Twans' recently on Ebay ok to buy it but you try selling it on as a cracked record to a dealer and they would decline or laugh at you, mint Twans priceless a cracked one worthless or that's how it should be.
Regards - Mark Bicknell.