I cannot imagine my world without the Internet anymore. Sure, it can be a total time waster as well as a great way to part with your money but I have learned so much from online sources.
Take this blog for instance. I am communicating with people I would not likely have a chance to meet in my day to day life. And I would not say that this hobby is taking away anything from my regular life. I've added to it, not substitute it for something else, increasing the dimensions of it.
Like a lot of people I know, I was a late adapter to Facebook (cannot see myself considering Twitter -- Don't want to be plugged in that much...) and have caught up with many friends from around the world since.
Probably only have 5 people who I see regularly as "friends" as this is a tool I use for people I don't live close to.
Another case at point. I just paid the rest of our balance for the apartment we are renting in Berlin and the booking deposit for the one I'm renting in BA, using PayPal. When I first heard of it, I thought it was a crazy concept.
What use case would there be for people to deal with a vendor whereby I would want to hide my credit card number?! Not anymore. You can't beat the convenience.
Sure there is a fee sometimes but when you are taking a crazy early flight and need to get your security deposit back after check out, it's nice to know it can just be credited it back without inconveniencing anyone.
Plus, it is less cash I have to be carrying around. The world has just expanded just that much more.