Not "too" but "much, much more."
On a scale from 1 to 100, in terms of impact on what you will taste:
- high quality water: 100
- fresh beans (typically 2-5 days post roast): 100
- properly roasted beans: 90
- your grinder: 89
- properly made espresso: 89
- your espresso machine: 50
If you are semi-serious about espresso, many experts believe the Rancilio Rocky is the absolute minimum....about $350. If you are beyond semi-serious (by which I mean "you can taste and appreciate the difference"), well, many thousands.
ETA: this is dated but well worth reading:
http://coffeegeek.com/guides/howtobuyanespressomachine/getagrinder
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Ditto ditto.
Wonderful to see you back here and posting enthusiastically in the thread.