Biggest mistake I ever made in audio was selling an MC240 to buy a big Home Theater receiver. A Yamaha. Now, I'm 4 x 2k+ each AVRs later, and that MC240 is selling for 5X what I sold it for. And nothing has sounded so good.
Don't sell your tube amps
Although this was an article in a guitar Magazine, I thought it might interest those who own stereo tube equipment:
https://www.premierguitar.com/gear/amps/dont-sell-your-tube-amps