There is indeed entire section for specific gear talk, but not sure has there been topic about do you have some kind of urge for new gear and how it happens?
I know some people just buy, seemingly whatever, give it a try, and if it works, it works. If doesn't, they trade/sell it forward. Some know exactly what they are missing or what they would need to do, but do not have tools to make it happen. Therefore buy something new.
I recall already years ago talking with one US cut-up harsh noise artist who was sitting on almost complete recording, that he felt is missing like couple seconds long fragment, that he needed to buy new pedal to be able to make it. At the time, had to wait for it. Did it make a difference in album, who knows, but there was still that urge that album was not going to be ready until there was that exact thing in there.
I personally have quite little moments when I feel like I'd randomly buy something and see what it can be used for. Already have enough gear that can do so much, plus I prefer to keep it quite minimal in a way that one item and its functions means more. If something is cheap and just sort of lands in my lap, I may take it. Different pedals or mixers or something.
Few things I have been thinking about and purchased are things like: What is the tool that would go AFTER mixer, to make especially live sound better. Not the tinny line-in to PA type of sound, but make it something closer to recorded material. Have had bunch of solutions for it that work, but they work for different situations. Currently been looking at 200 euro value pedal that should be functionin like Tascam 424 input gain - which is sort of perfect for final noise boost over whatever you are doing. But does it really work like the real deal 4-tracker sound is? In studio and Finnish shows, I can theoretically use real 424 as mixer. While flying somewhere, it would be impossible to carry too much stuff, so buying small pedal that does the trick would be luring idea. Just thinking is it really like it says to be, or would any generic overdrive pedal do the same trick. Which is fine, but not really the same.
Occasionally, I do think would I need one more synth? Something that works differently than the former ones? Since there are so much a synth oriented sound out there, I am tempted only very short periods of time and quickly realize I have not even fully immersed myself into all possibilities of former synths I have. Same with filter banks. Do I need new filter? And why exactly? Would it do something really different or is it just excuse to be able to toy around new gadget?
So what did I buy? This year, maybe nothing? I did buy octave pedal of some sort, bass-distortion with clean/wet balance button on it. Couple of years ago rat -clone pedal. Most important have been updating looper. Same pedal, newer model. That was already couple years ago. That really made a difference, especially for live.