You just need to buy the game. There is no online fee. It is free to play. Diablo 3 is free to play. There are no monthly fees unless you decide to use the RMAH.
After you buy it from a store, it is free to play after that.
No, you just buy it like the other ones and you can play online for free but internet charges still count
Yes, Diablo is in Diablo 3.
Probably not.
Yes, of course people play Diablo 2: Lord of Destruction. And most people probably will until the release of Diablo 3. And even then, people probably might still play it from time to time.
No. There is limited multiplay with up to 3 other people. It is free to play on battle.net
Diablo 3 needs a constant internet connection if you want to play it, so yes it does need WiFi if that is what you use to connect to the internet. Hope this helps.
It costs $9.99 from the Diablo 3 official website. I bet you can find it even cheaper from other places as it's pretty old now.
yeah man diablo 2 is a totally different game than diablo 1
You should get diablo 2 and 3, i can help you anytime when you start just send me a msg Yours Rixoz I play in Europe and my name is Rixoz
No. There are Diablo 3 teaser videos on the Blizzard website.