I'm assuming you're referring to the Audiosource edition similar to Gdupont's above. That one generally goes for around $40 on Ebay if mint. The monotone orange label one that Tongnam mentioned is the more expensive - going for $70 or so. Both of them can randomly sell for much more on Ebay, though, depending on how crazy two or more bidders are feeling. I've seen them both go for over $100 - but that's happening less now with the economy fading.
I just bought an unopened copy on ebay (solid red label, prop 7778-79 in handwriting on the cover, barcode 7392004777792). It sounds fantastic. The vibes and clarinet gave me chills. This is my personal favorite jazz album but I didn't have a turntable until now.
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