[Raven312]

I had a few things over the years that looking back, I wish I had kept. Among them were:
Spica TC-50's
Aragon 2004 MK II (actually I had a prototype that sounded MUCH better than the production unit. When they found out I had it, they offered me a brand new MK II in trade; my unit was never supposed to have left their hands.)
NAD 3020
Naim NAIT
SOTA Star Sapphire (with a Magnepan Unitrac tonearm)
Apogee Centaur Minors

They were mostly budget components but some of them were revolutionary designs at the time.

I now own a pair of Meadowlark Kestral II's, which I love. I think I'll always hold onto these...