We get comfortable with what we are used to, and we sometimes continue to do what’s familiar even if it is not what’s smart. This is particularly true with online casinos. It can sometimes be difficult to get an account funded; by the time you get one casino account set up you are done with that hassle and ready to play.Plus, we are not made of money – it can be inconvenient if not difficult to fund multiple accounts. Then there is the familiarity. Most of the online casinos have different interfaces – sometimes subtle differences, sometimes profound – and some are simply more suited to my taste and habits than others. But, there are a lot of reasons why you want to have an account at more than one casino.First, not all casinos offer the same thing. I like to play progressive slots that are at one casino, but I prefer to play a turbo No Limit Texas Hold ‘Em that is only available at a different one. You don’t need to give up a game just because your favorite website does not offer it.Second, different casinos have different rules for the same game. I often write about ways you can reduce the house advantage. If you want to be a winning gambler, you can never take your eye off of the edge that is built into the house. The closer you can get to a level playing field, the better your chances to win. I like to play Blackjack while I’m watching my weekend sports bets. So, I sign onto the online casino where I place a lot of my sports wagers. But, that online casino does not let me surrender in Blackjack! Sometimes I play anyway; it’s convenient. But, I never make serious Blackjack bets here because I’m unwilling to let the house have an unnecessary advantage.Third, if you are an active sports gambler, you know that it’s critical to have multiple online casino options. While all betting lines move more or less together, there will often be a difference of ½ to 1 point. When you make your bet you want ever ½ point you can get. Further, different casinos will often charge a different vig for the same spread. Two casinos may have the team you want at -3, but one casino may be charging -115 and another is charging -110.Plus, there will occasionally be that time when the line moves dramatically, but some casinos are slower to get the move than others. This happened last year in a game where LeBron James was expected to play against the Spurs, but at the last minute James did not suit up. The Cavs went from being an 8 point favorite to a 2 point dog. But, for several minutes, there were some casinos still making the Spurs available at +8 (rather than -2).Luckily, I had an account at one such online casino. I still liked the Cavs to win, however, and took some off the Cavs +2. The Cavs won the game by 1 point! I covered with the Spurs on one bet and with the Cavs on the other.There are other reasons to have accounts at more than one online casino, but I’m sure you get the point. If you want to get the most out of your online casino experience and, more importantly, you want to get every available advantage, then you need to sign up with multiple casinos.