I agree with the 0700 comment and it came out so soon after the 500 I'm left wondering what was wrong with the 500. (as in I don't think I would buy either of them) I have a 480 (and a 450 for decaf for the missus) and my upgrade based on current market will be to a Mahlkonig Vario Gen 2 - but that's out of your price range at ~$700 (and mine
)The Breville Smart grinders seem popular but I've never used one and have no info as to how well it might do plunger grind.

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