Anybody know if back issues of BassPlayer are worth anything or how to find out? I've seen a few 90s issues go by on Ebay at $25. This has me curious since I have the whole collection including the two "test" issues ("Geddy Lee Now" & "The Art of Soloing") that came out long before the "Premier Issue" (Billy Sheehan). I ask this because I feel the GAS of a new bass coming on.