BlizzCon is the main event you want to attend to if you are a fan of any games created by Blizzard, including games like Starcraft, Wold of Warcraft and Diablo series. Because not everyone can afford to buy plane tickets and to live in a hotel room for a couple of days, Blizzard is now selling virtual tickets.
The virtual tickets will be allowing people to see the official stream of the event in HD, without any commercials or any other unpleasantries. You will also have access to panels, interviews, contest, in-game goodies, on-demand replays and much more. A ticket will run you $39.99 which is quite pricey but it can be worth it.