About two years ago, I had need/want of a physically small power amp and set my sights on a Toshiba SC335. I confined my looking locally because in Canada, an e-bay purchase involves currency exchange and shipping. I did not want one that badly and anyway, the need passed. But last spring, I spotted one in a thrift store for cheap and bought it. Both meters were dead so I found brand new ones from the UK. A slight enlargement of the bezel hole, transferred the meter scales and voila. Completely recapped it and replaced a few transistors as recommended by a contributor on another forum. Then thought I should get a matching preamp. One of those came up on CL for a few bucks and it too got a complete re-cap, plus metal film resistors resistors and new op-amp in the phono srction. Problem was, the seller gave me another power amp so it also got the same treatment as the first minus the meters which were fine. Now, with two power amps and one pre, another pre was required. Last June, someone was selling a power/pre/tuner stack for $20 at an electronics garage sale. Someone beat me to it but all he wanted was the tuner and sold me the power/pre for $30. Gave them both the same refurbishment but now there are three power amps and two pre-amps. Another pre-amp came up on CL. I picked that up but resisted temptation and passed on yet another power amp he wanted to sell me, So now I have three pairs of Toshiba SC335/SY335's that I really have no need of. They sound really good and look very nice all stacked together but I will not realize what I've invested if/when I decide to sell them.
Some people have hobbies, I have obsessions. I went through a similar acquisition phase with speakers, 8 track recorders, then reel to reels. Farther back still, it was one particular pattern of depression glass.