I think you made the right choice. Lots of aftermarket options and a solid reliable build quality. There are certainly flashier regulated options in that price range but the build quality is nowhere close.
I always store mine with some air in them and top off before I go shooting. It doesn’t seem to be bad on seals, since I’m keeping fairly consistent replacement intervals.
I think that’s just the way the hobby works. My wife (and many others’) prefers to limit my acquisitions with a revolving door of: one goes in, one must go out :(
I don’t think the posts have to be that meaningful. But it would sure help if they were. It’s to keep away scammers. That rule and my need for some items in the classified boosted my personal engagement too. I’m much better at lurking...