Skype?

My mother really, really loves Skype. That's really caught me off guard, because for some reason I've never been very excited by it. So I want to know: do any of you folks use Skype regularly? And can anyone suggest why I might be more hesitant about Skype than I generally am about nifty-sounding new technologies? ('Cause thus far, I haven't come up with any plausible explanation.)

( More background and some possibilities... )

I suspect that (for example) Kim and I would have loved Skype when we were living far apart after college: seeing each others' faces more often would have been wonderful. So why haven't I leapt at the chance to have that same extra closeness with family and friends today?