An audio component you just can't let go


What is a component you just can't seem to let go or sell even after you've already upgraded and not really using it anymore. What makes this component so special?

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I have a McIntosh Mac 1500 and a Mac 1700.  They are mint and I will never sell them.  They are rarely used but I love them.

B&K Pro10 Pre and ST-140 power amps with a pair of Mirage M760s. I purchased these in the later 80s. Have also run more than half a million dollars' worth of audio gear into and out of my home. I still not sure why I set them aside as they still sound wonderful. 

My Sony 32 inch CRT TV. 25 years old and works as good as the day I bought it. Perfect for watching old shows that just look better with a little pixelation. It has  stereo sound so it qualifies here.