Same. I play the same 5 games throughout the year and rarely buy anything, but a few games I'd been looking at went on sale. I could've pirated them, but it was just so much easier to click buy on my Steam Deck and instantly download and play them. Not to mention cloud saves for free, remote play, and the ability to dock the thing to my 65" 4k TV.
Steam has robbed me of more money than any streaming service ever could, and I'm not even mad because they provide the best service I've ever received no matter how many or few games I buy. They recently identified one of the biggest reasons for refunds and piracy being people who want to validate games will run well on their system, especially on Steam Deck. As a result they're working on a demo feature so you can test a game before buying it.
All fair points, and I'm definitely leaning more towards your viewpoint having read them.
I guess I've just never felt the need for them given I've been treated and paid well so far, and I really like the ability to just walk next door at a moment's notice if I so desire. Not that I've ever not given two weeks, but the option to do so, and not feeling like I'm gonna be compensated less due to short tenure is nice. Not that unions have to operate that way, but historically that's the case.
I'm glad it has worked well for you! I'll definitely be more open to joining one in the future, and strongly consider it if the opportunity arises. Thanks for your perspective.