Rocky vs Mazzer Mini?

Hi - I bought a Silvia a few months ago and love it. I knew that my
Maestro grinder wasn't going to 'cut it' and planned on buying a Rocky
when i could spare the cash. I seem to remember a lot of talk on the
forum about the Mazzer Mini in the not too distant past. While I still
see $285 as lot of money (the Rocky doserless) and I'll probably order
it tomorrow, I was wondering if there was a compelling reason to go up
to $430 for the Mazzer mini. I am an espresso newbie, still trying to
discover a great espresso with great crema. My wife is happy with
cappas. I typically make 2 or 3 cappa's per day. Thanks - Scott

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