Too many to remember....
JBL L100 pair, paid $20 sold for $700
AR1 pair with Altec 755, paid $300 sold for $2500
The Tempos, Speaking of the Tempos record, .50 cent from GW, sold to a chap in Paris for $850
1974 Fender Strat sunburst finish(wish I had kept that one) $200 from a pawn shop, sold...