I like being in the same physical room as the person I'm talking with. My friend said he didn't like waiting for the CD to arrive in the mail. I guess if you have to have the CD right away then going to a store is the way to go however if you have a busy schedule then online buying makes more sense. Some people are afraid to give their credit card information over the web. Yet these same people give their credit card information to gas station attendants and waitresses every day.
People just trust other people.
They are less trusting of computers. Mainly because they don't understand computers and where their credit information goes once they have finished typing it. As long as one makes their purchases on a secure site there should be nothing to worry about. Sure you could have a problem but you could have a car accident on the way home from the CD store too. I recommend purchasing over the web.