I just want one device that does everything so my new learning can build on my old.
As I’ve mentioned elsewhere here, I love the TI-85 I used through college. I’m no partisan. However, I think that for anything outside a school context, that means skipping any device marketed as “ok to use on tests” and buying an HP. I scarcely need the cool stuff of the HP50g or DM42n I picked up along the way, but if I ever do, I know it’s already in there and waiting for me to discover it.