I buy used, do DIY, and if the product merits it, occasionally buy new.
I am not very good at selling stuff, so I mostly accumulate. Bad habit, I know, but that's how it is on my planet.
Worse, my Test Equipment is worth more than my HiFi (although it cost me less), all bought supposedly to "save money" with DIY. I'm building gear I don't need "for the enjoyment of the hobby".
So, most of you are more sensible than I. But I can't change, and life is too short to fight your own nature.
Regards, Everyone.