I sold an SP404 when I was a young adult and needed the cash. Missed it always and later on down the line got another. I haven’t sold much else that I’ve regretted. I’m maybe only now at a point where I wouldn’t necessarily be selling something to upgrade like I was in the Volca days. I can see swapping things out being tougher decisions.
I do sometimes think maybe I should sell the A4 to fund something else, though, but I really don’t want to do that unless I have to until I’ve put in the work to really feel like I’m getting the most out of it. I’m not there yet – I need to finally cross off that ‘make a few tracks with just the A4’ to-do.