Biggest value for the Dollar?

Pass Labs X600 Reference Monoblocks. Paid less than one-third of the price.

A few years ago, I picked up a pair of NBS Monitor I speaker cables in an mid-week auction. They had no reserve, and I was the only bidder. The seller was very disappointed that no one else bid, but he kept his word and I got them for "next to nothing."

My www.carolinaaudio.com JTM speakers with the full range Jordan's give me the some of the best sound I have ever heard for $1500. Unbelievable !

Not a component, but cryoed Hubbell outlets have been the biggest bang for the buck I've ever experienced.

DIY power cord made from Belden 83802 wire. For the $ (40) spent by far brought the greatest improvement to my int. amp.

The best deal and exeeding expectations: A pair of Jadis 200 mono amps bought last winter.
Full retail: A pair of Maggie bass panels bought in the late 70s, early eighties, still driven today with a pair of Krell 300 monos,(Audiogon, also exeeding expectations in this configuration) a Mark Levinson the man X-over and a pair of KBL pres in mono configuraton.(Also Audiogon, but as expected ) Blend wonderfully with the Quads and Sound Labs.