If youre willing to buy as new off ebay youll find 6910 sunbeam grinder combos in your range. Indeed department stores mostly price match the combo for not much more.
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If you want a boiler, an as new Gaggia classic, would be a step up from VV. New, you probably could get a good deal with the gaggia grinder.
Plenty of 2-3 year old silvia and rocky combos get advertised in the hardware section here for $600 - $700. In good condition, they may be your best choice and will retain value if you upgrade/ lose interest later.