what are your top "audio bargins" in your system history?

Grace F9e, purchased new in 1984 for $158. I’m using it right now while my Soundsmith, The Voice, is getting retipped. The F9e is still amazing me after 39 years. You can buy one on eBay right now $500 from Japan. I’ve seen in the tires $1200 and thought about selling it. I’m glad I didn’t.

Not in the tires. Spellcheck is really going crazy today. I meant “advertised”.

bent

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I've gotten some good deals over the years. A few years ago I bought a Janis W1 subwoofer for $41.00. I think that it must be the best bargain that I've ever bought. Another one is the inexpensive Dayton Subwoofer amp that I bought to power it that's  better than the original Janis Interphase amp and cost just $220.00. Speaking of $220.00, in 1979 I bought a pair of Mcintosh MC60's that I'm still using as my main amps today. I paid $110.00 for each. 

Fo.Q Tape

I paid a dollar for about as mint as it gets of Beethoven's nine symphonies, Karajan/ Berlin on a tulip bordered Deutsche Grammophon box set, most sides not even a pop on them.

$40.00 for an unopened box set of the 58-65 Solti / Vienna Wagner Ring.  I have only seen two sets, one nice condition, the other acceptable, and any other set, trashed.  I almost wet my pants when I saw it, an unopened box as I wasn't even shopping for music.