REP tokens have been distributed on the Ethereum blockchain and are now actively being traded on several exchanges, including my personal favorite Poloniex. Note that the Augur crowdsale was last year. I don't know the exact crowdsale price, but current REP price is roughly 10x higher at the moment. So do keep in mind that there will probably be a lot of selling from crowdsale participants looking to cash out. I have sold about 25% of my holdings and intend to buy back gradually to increase my overall amount of REP as the current price decline continues. Eventually it will bottom out before skyrocketing when Augur gets close to launch. Same basic pattern that we saw with Ethereum itself.