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

If I consider a "bargain" as something that can be purchased at a relatively reasonable price, and that performs near or above similar gear that sells for a similar or higher price, then my list would include:

• SMc Audio upgraded amplifiers and preamplifiers
• Khozmo passive preamps and Hattor passive/active preamps
• Mojo Audio Mystique v3 DAC (the rest of the line is very good but not the same level of bargain as the v3)
• Sound Anchors Stands 

Spica TC 50’s

GZ34 metal base tube purchased in early 90’s. 

Vandersteen 2CE Sig II speakers

Schiit Freya Plus tube preamp

Schiit Bifrost II DAC

Line Magnetic 216i integrated tube amp (best addition overall)

@testrun  I remember my Spicas. They were quite excellent, but in time I went to Celestion SL600's, more than a little because the SL600's gave me near insane  3D. Anyway, when the SL600's eventually started going through one too many tweeter deaths, I ended up with NOLA Boxers. I've been happy ever since. True, they don't possess quite the 3D of the Celestions but their tone is a good deal more natural.

The original Rega Kyte bookshelf speakers that were £200 sometime in the early 1990s.

If it wasn't for their lack of bass I'd still be using them.

They had such natural timing and coherence that they made most others at the time sound somewhat messy and blurred in comparison.