I have gotten some good deals on FBMP or crgslist. When my stereo had finally died in 2016, a friend gave me his old Denon 3805 AVR to keep and use in the meantime. I could take time now to research and decide what new amp I wanted to buy. Then I found a pair of JBL S38 for $200 local to me but I was put off by the copper colored drivers. The man ended up just wanting them gone and he gave them to me. I felt sort of bad and gave him $75 for them. They actually sound quite nice and I have had them for 8 years now. Between that and the AVR, I was rocking for $75, all of a sudden like. I could still be living with that combo.
I was so satisfied with the sound that it afforded me time to build new DIY custom speakers and subs at my leisure, all the while having great music. I listen to other people's systems. I'm doing pretty good. I would not want to trade mine for theirs. Now I have 12 pairs of great speakers and about as many amps/receivers. The Denon the friend gave me worked so well that when another came up for sale on FBMP for $75, I bought it too.