Gusset EXT24 is a good call- just as servicable as a Hope, and far cheaper. Uses standard bearings of your choice. I find mine needs a little TLC- if left alone it outlasts an XT, but if cleaned out and lightly greased every so often it outlasts XT by a lot (it’s basically a shield + seal design, cleaning out behind the shield from time to time helps the seal)
Yes, disposable is bad, but it’s on a trivial scale considering riding as a whole.
Oh and as ever- if you’re not getting decent miles from an XT or above Shimano BB, you’re probably doing it wrong. The biggest advantage of Hope is that they’re very resistant to overtightening tbh.