Gambling evolved from your local poker house (mahjongg in my case) to something that you just click with a mouse.
What's your bet?
I was in real life casino only once long time ago and I didn't like it, so online gambling is my choice. I think online gamblers and real life gamblers are different kinds of people. For example I really enjoy chatting with gamblers online, they seem nice persons to me, but the real life gamblers I met were no fun to chat with.