I've bought a few new trombones in my lifetime. An Eastman (shires stencil), then eventually a Yamaha. Even had a King 3BF for a while. And yet, somehow, they've all passed. Either too broken to be worth repairing, someone needed it more than me, or I simply just didn't like it. I used to be so into competitive concert band and stuff, practicing etudes daily, constantly researching trombones and watching prices... but now I find myself still holding onto the trombone I got back in 6th grade. A Conn 23H. It just feels right? I can't lock perfectly into the register of any other horn like I do this one. Sure the partials aren't perfectly even, but they never surprise me. Every other trombone I hold feels proportionally wrong, like the hand grip is too long or the slide is just too wide-set. The counterweight feels perfectly place and I never get tired of holding it.
I've played that horn for almost a decade now and I see no reason to get a new one unless it just completely breaks. I feel like the quality of an instrument doesn't really have any bearing on my enjoyment or musicality, it's just dependent on if I'm used to it.
So who out there is still playing on their beginner band trombone?

I'm partial to vintage Conn horns, and new Getzens.