you are of course correct, but the nespresso capsules are vacuum sealed, so it's not like grinding your own, but it's not a bad compromise. making "real"coffee at home is a bit of a bother: you can only buy coffee beans in small portions (otherwise they lose their freshness), you need to grind (and clean the grinder) and than you have the machines that tend to be big, and require cleaning of their own.
Quite right, maintaining a proper coffee setup takes some dedication. These days I usually just drip from a ceramic cone with a cloth filter or do a press: far less mantenance!