I’m super excited for simply the sense of adventure in an open world. For the nostalgia. For class design that, forget if it was better or not, was just so much DIFFERENT than now. For skillcap that’s likely higher despite some horrible imbalance. Really after BfA hit and felt like nothing but a Legion content patch I’m excited for a new feel through something old.
As far as vendors go, however, I would point out raid gear is vastly superior in PvP to any alternative and you’re competing for like 2-3 drops per boss with 39 other people. Way slower process than live.
EDIT: Also just super excited for dumb drama and things like kiting Kazzak to SW, Azuregos to Org, blood plague, etc. All better make it live in classic.