Kubla,
Some tapes go for crazy money, it's the function of ego's and the bidding wars at EBAY.
However, during the last 48 hours the following reels closed at reasonable prices and long term searching will reward you.
Gershwin on Mercury Living Presence $9.00
Ella Fitzgerald "Sings Broadway" $7.01
Dave Brubeck "Time Changes" $11.51
Bob Dylan "Greatest Hits" $12.99
Mozart "Horn Concerto" London Blueback recording $17.00
Simon and Garfunkel $5.50
Rolling Stones "Greatest Hits" $8.99
Stan Getz and Charlie Byrd "Jazz Samba" $8.90
Jack Teagarden $1.77
Some of these may appeal and some may not. The point is, there are thousands of new items every week and many at affordable prices. If your a software junkie and enjoy the sound of analog, this is another source.