One of my favorite series of all time is ridiculously discounted today because the author, Matt Wallace, is trying to raise money for a good cause.
I have ranted and raved about how amazing this series is. Guys, I cannot even. Words fail me as a reader and a writer. It's near future science fiction, about gladiators who battle to the death over a wormhole for worldwide entertainment. If the premise alone wasn't enough, the writing is superb, and the style of voice is original and entertaining. Download a sample from Amazon if you want to check it out.
Or you know, you could buy the first two volumes for a DOLLAR! Seriously people. I would pay a lot more money for this series, and right now the sale is mind-boggling.