The main benefit of playing online is the bonuses that come with it. Welcome packages are wild, and the daily and weekly bonuses will blow your socks off. More often than not, you will also find casinos that offer a bonus for every deposit you will be making on the site for the rest of your lifetime.
In addition to those bonuses, you can take the casino with you anywhere you go. This way, you will never miss out on a tournament, flash promotion, or even a challenge from another player.