mrgnomer wrote:The very good grinder you started with will be able to follow you to that serious upgrade justifying the extra few hundred dollars US you paid for it vs. a less expensive, less capable grinder.

Not only that, but if you decide that making espresso at home isn't your thing, you're likely to recover a larger percentage of your purchase price of a good grinder compared to a mediocre one. And if you buy a second hand Rocky or Mazzer, you may recover ALL of your purchase price (the guy who bought my Rocky sold it for the same price two years later; he could have sold it for more than he paid, but it was favorably priced for a friend).