I don't upgrade or change for the sake of it! I started riding (properly) in 2012, and started posting up here at the intersection when I finally started learning to ride a bit better, and was figuring out what kind of bikes were working for me, and then, finally had the money to explore that a little.That advice seems rather out of character for you... I would have thought upgrading/changing for the sake of it/German bearings would be other good justifications?
But when it comes to bearings, they all come out of one of maybe three factories the world over, so just buy what's most cost effective that works. Add extra grease if you feel the need to (I like to as a matter of practice), and if they clap out or feel notchy, bang em out and slap some new ones in!