Re: code word
Do what you like as a hobby.
But wasting money on snake-oil products vaguely related to said hobby? That's the silly part.
I'm a gamer. I operate gaming servers too. I don't have any of that "gaming" junk (Amazon today has a "gaming" sale, consisting of little routers with about 12 antennae on them and light-up keyboards - and yet my ping is lower than anyone else's because I just have proper QoS on the connection, local network, etc.). My mouse is a TeckNet cheapy. But I'll still kick your backside at Counterstrike with it, though.
I'm an astronomer. I have telescopes, mounts, camera bodies, image-stacking software, None of it cost very much at all, and all of it produces results that even a guy in the street would go "Oh, wow, yeah, that makes a big difference". You could spend £1000 on a filter. Or £10k on a massive Schmidt-Cassegrain. I don't. Because other factors - not least the expertise to use it, clear skies to make it worthwhile, or limited value of the difference I'd get from using it - mean it's not worth it.
There's a case of choosing the right tool, and it improving the output of someone skilled in the use of it. But being skilled in the use of it is more important no matter what tool.
Buying snake-oil products like Killer Ethernet cards, or super-duper-carbon-fibre fishing rods, or some professional set of £2k golf clubs when your handicap is still in the double-digits, or some special spark plug doesn't magically make things better than you could have got anyway, and rarely provides any kind of return-on-investment, especially for a hobbyist.
In fact, the more you avoid that snake-oil junk, the more you can get out of your hobby, the more hobbies you can have, and the more drinks you can have down the pub with your mates afterwards. It's the people who bore you to tears about some thousand-pound snooker cue and its manufacturing process when they can barely hit the ball, that then try to justify it, and never have any money left for anything else that I would feel sorry for.