I know I can find this information elsewhere with some searching, but because I enjoy the tone of discussions here, I thought I would try starting a conversation. I have always had vibe pump espresso machines. After looking at the Mini Vivaldi II, and appreciating its beautiful lines, I noticed that it has a vibe pump. Now, I always thought that serious machines (i.e. >$1,000) would have a rotary pump. What are the user-end differences between vibratory and rotary?