onemorecupofcoffee wrote:I am about to purchase my first espresso machine and I really don't have the extra money to buy a grinder right now. I noticed that Whole Foods and Trader Joes can do this for you. Is this a good route to go?
Preground coffee = stale coffee. The oils that make up the crema are volatile; as they evaporate, so does the potential crema. And to make matters worse, the grind fineness changes as they evaporate (finer and finer). The only machines that can readily produce a non-gusher with preground coffee are those with "
pressurized portafilters," but the result is lifeless, dull, black bitter brew. If you wish to experience it firsthand, go to any Williams-Sonoma and ask them to demonstrate one of their espresso machines using their premium $20+ a pound Illy preground espresso blend.
(Unfortunately I speak from experience, as documented in
Hall of Shame: ''What I did when I was a newbie...'' 
).
Psyd wrote:The difference between a five hundred dollar espresso machine and a fifteen hundred dollar espresso machine is in ease of use. They'll put out the same product, you'll just have to work a bit harder with the five hundred dollar machine.
I bet many of the respondents to
What was your upgrade path from a Rancilio Silvia-class espresso machine? would disagree.