Any regrets in selling gear?

Oh man, 50 years of messing with hifi but it seems my 70s -80s stuff gave me the most regrets.

Marantz 3300, 140

Crown D150A, IC150A

Pioneer SX1250

Hafler DH-200, NAD 3020 as pre

Audio Analyst M6 speakers

Yea all my Adcom gear Pre, power , and CD. Great gear for the price.

"Regret getting rid of my Sony 707 ref cd player"

Marvelous player.  Gave it to my Brother-In-law and he still is enjoying it. 

The pieces that come to mind include a pair of larger Advent speakers and the high power (for the day) Kenwood receiver that drove them. My AR turntable. My Hafler amplifier. Many of the pieces lost in the fire I have very strong regrets for their loss. That is a long list...

THIS HOBBY is my passion ! I buy and sell all the time ! I look for rare and vintage one offs that are very hard to come by...... That being said I have a honey hole of rare and valuable grear . I have had many regrets selling this stuff, esspecialy shipping it ! I take ALL THE RISK, EVEN WHEN YOU ENSURE IT ! THE BIGGEST rip off is with Vintage , rare hard to find custom amps ! PART PRIATES ! steal hard to come by components and send you back the componets missing key parts ! I have a huge grave yard of items sold and returned missing key eliment parts ! it is quite a scam , All at my expence ! i have thought about quitting but I am soooooo deep into it ! It sucks that the few who mis represent our hobby stoup to those lows and tacticks ! i don't know how to stop ! I have a small fortune wraped up into this gear that to most is just non working junk NOW ! God Help me !