What sort of regrets though...
I regretted selling a load of card making stuff when I needed to make someone a card and had nothing to hand - but it was a fleeting thing, I bought a card, I got over it.
However, whilst I don't knit or spin or weave all year round, I do it in fits and starts and mainly in winter - I do know for a fact that being ABLE to do something, even if I have no intention of doing it just now, makes me feel somehow calmer, safer, just... better. So I won't be selling the spinning wheel or the loom just because I haven't used them since January.
I really really LOVE the fact I can sit down to do something, and the things I need to do that thing are there so really my issue is tidying and organising things better so they have a place to be put away and a place to be used in.
As someone else said... not everyone is meant to be a minimalistic sort of person, I think those bare barren minimal homes look very nice, but very empty - great if you're at work all day, if you go out a lot, if you're home for the odd meal, tv program and bed, fine.
If like me you're at home 24/7, rarely go out, and like to be busy, then thats not fine!