You’re not totally wrong, just mostly. I use Apple stuff. I bought an EP-133 at launch. That part was true.
I also spent thousands of hours with a MIDI setup on my Amiga when I was in high school, teaching myself how to program the little FM synth my parents bought me for Christmas, and learning the theory of what makes a drum pattern sound good.
I don’t have thousands of hours available anymore. I still want to dabble sometimes though. Those are skills I worked very hard to learn, I enjoy exercising them, and I don’t want them to atrophy. That specific Teenage Engineering device has all the things I want to play with in a single portable box that also manages to be dirt cheap for what all it does.
Some people drive BMWs because they want to be seen driving them. Others drive them because — get this — turns out they’re nice cars to drive. At $300, my EP-133 isn’t exactly the BMW of musical instruments. It still does a hell of a job of scratching my musical itch. I couldn’t care less if anyone else ever sees me playing with it. I hope they never do. I got it for me, to enjoy, to make (bad) music with so I can get songs out of my head and into my ears. Sorry-not-sorry if that’s not “real musician” enough for some. I don’t care. I’m still having fun.