Within the last two months, this is what I have found:
Thrift:
Boston HD5 speakers: $2.50 each
Technics SL-D2 (mint) with a mint Stanton 80XE cartridge and D65-2 stylus: $25.00
Brand new cassette tapes--TDK and Maxell (some chrome): 35 cents each.
RBH Model 816 3-way speakers: $5.99 each.
Koss TBSE1 headphones: $9.99
CL:
Pioneer CT-F550: $20
Pioneer CT-F650: $10
Pioneer SX-680: $60
Pioneer SX-424: $40
Family and Friends:
(50) 80s records (VG/VG) (various): Free
Soundesign Receiver/Tape: Free
Soundesign Speakers: Free