how much to offer friend for records


I have a friend who has a pretty big collection of jazz, classical and pop music. He is interested in my coming to evaluate and buy a bit of his collection

he's an avid valuable book collector and I have the feeling he'll have a similar outlook on records

normally when I buy a "large quantity" of old vinyl $5 - $10 per record seems more than reasonable for good quality unless they are obvious rare collectables,japanese imports, etc

he played them on a Linn Sondex so they didn't get typical abuse

ebay pricing doesn't help with some people high balling prices for a sales score

he's parting with his vinyl as he's been purchasing too many instruments (guitars and basses) lately and his wife doesn't want him dipping into credit

any suggestions on fair pricing would be helpful
audiotomb
I'm pretty much with Jaybo. Ask him initially what amount he has in mind for each. If you're okay with it, ask if it changes with 20 or so, then fifty or so. If the amounts in his mind are fine with you, great, go pick some. If it seems high, don't negotiate (he's your friend), just say "thanks, I'll pass, but I appreciate the offer to let me be first".
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my friend isn't in a fit with his wife (who is a saint by the way), he's mearly overextended his guitar purchases and is acting financially responsible

he has more music than he can listen to, rares plays any vinyl and was the one who asked me on the lps end
he even told me before my next vinyl horde elsewhere to come look at his lps

he's not really a collector music wise, more appreciative musician, but does collect first print rare books for investment

I do value his friendship and don't want him to feel slighted either

the "thanks for the offer" is a good suggestion as is the 'buy back policy" but I've already fronted him $700 for his last guitar at his request

I may suggest him sell some of his rarer things individually (ebay, here, etc)