[Gameplay]All Random Isn't All That Random

I've been playing a lot of ARAM lately and I can't help but notice how often I get the same champions consistently. For two days in a row I have gotten the same champion 2-3 games in a row. Had this happened once, it would be random, but it has happened more times than not. On top of this, there are champions I own that I have never seen in ARAM. I'm thinking that some testing should be done in regards to your random algorithm for selecting champions. Based on conversations I've had with other players who play ARAM, they experience the same issues as I do.