What piece(s) of gear did you sell/give away that you would like to have back?

2016 My stored system got nicked.. C22, 2 MC240, TT, SS Amp, 3 way  tube crossover, a footlocker of OLD valves, on and on, and on.. 

I wish I wouldn't have sold them to the insurance company, BUT I didn't have a choice, at the time.. 43K in insurance and I'm still hunting up parts.

Could have been worse, no insurance or no replacement value..

Regards

Sellers remorse? Nah man, alien concept. If it's worth keeping why would I sell it? Unless hard up for cash, which to me would be such a painful lesson it would never be repeated ever again. Like the one time I had a Yamaha RD-350 and a Datsun 240Z and after college I was broke and sold the Yamaha for like $800.

Then 20 years later Motorcycle has an article on vintage bikes and there is my exact RD-350 same color and everything only now worth ten grand!?! WTF!??!   

Learned that lesson. Still have my 1979 911 SC. Now worth twice what I paid for it. More than twice. Shop critically, buy wisely, sell rarely. Only way to go. 

I regret selling my Odyssey Stratos Extreme and the Kismet Reference floorstanding speakers.  Only got rid of them because my wife was on my case to get rid of some of my treasures.  I had 4 or 5 amps and 3 pairs of large speakers hanging around. Got rid of all of them, should have kept what I mentioned above.  The Stratos would have been a great back up amp and the speakers were really quite special.  

I regret selling my Spendor SP 100 Speakers. I loved them, but got the itch, as well as being younger and not as wise.
They were more colored in some ways than my current speakers, but it's all about enjoyment and involvement, and for that they were hard to beat.
Although I like my current speakers better, to me it's like different flavors of ice cream, and it would just be nice to have them around to use once in a while.  

Forte IIs, my wife didn't like the looks.