Any guns you regret selling ?

I use to have the whole Famae 54x set in my collection but slowly just sold them off. Found this photo of the 540-1 while cleaning up my Google drive and it just has me thinking about other things I had before.

I had a lot of fun shooting them but as I got more into competition shooting they got sidelined. Just a shame considering I did enjoy shooting them for the most part, accuracy wasn't great but serviceable. At least they were reliable and never gave me any headaches.

Selling guns is always a mistake, unless it's a Canadian made AR180.