How often do you use the gear you think you’d regret letting go of? I always think about keeping unused gear as a misallocation of my musical resources and/or hoarding tools that someone else can use. If you fear that you’ll miss a piece of gear for a reason other than helping you make music, I’d encourage you to challenge that fear and see what it’s all about.
TL;DR story: I went through a sell everything phase when I was deeper in the guitar/bass/pedal world, a couple years before my euro journey, and I’ll say the experience has been one I think about often while building up my modular system. After trying out so many pedals I felt like I was collecting stuff based on maximum sonic possibilities and novelty. Eventually I got to a point where I had all the cool pedals and options I wanted, but using them only took away from my creative energy. I found myself just fiddling around with settings and sounds and not actually making the music I wanted to make… so I sold most everything, only keeping a delay and overdrive. I played with that small set-up for a while and made a few additions eventually, but always kept it simple from then on. I was more productive without all those switches at my feet.
That whole experience definitely made me really weary when I got interested in euro. I kept asking myself, “is this just another ‘ooo shiny’ situation? will I actually use this stuff?” Eventually I decided to dive in, but I looked back on my blunder with new perspective. Even though I ended up selling most of that stuff, the fact that I tried out so many pieces of gear expanded my knowledge of sound aesthetic, UI, and my workflow preferences. So now I use that knowledge and my musical goals to give myself defined parameters when choosing what to put in my system. This has helped immensely because I can recognize when modules aren’t right for me even if they are really inspiring and cool.