I agree to a point but I have found the more gear I get that fixes and issue allows me to focus on playing the game without worrying. A sling for instance so I can draw my pistol quickly or even just take the weight of the gun off my arms a bit, or a nice mag pouch that makes getting mags out quick and more efficient. Sure all that will add but I have found getting your gear perfect lets you focus on just having fun and shooting people and not worrying or feeling annoyed in certain situations.
This, exactly. I'm a noob, not played a lot, but the best things I've done are cheap. Good set of eye pro for £9, face mask £15 and knee pads £15. Everything else was a bonus as once I had a gun with a high cap mag there wasn't any need to carry much else.
I added a plate carrier because I wanted to carry mid caps. That's the most expensive bit of kit I've bought. But now realise a belt may have been just as effective. The rest I've added out of personal taste, not practicality.