Coinedup is a poor man's cryptsy, when it comes to Altcoins. It's a good site, don't get me wrong, but a lot of people hate seeing coins end up on coinedup first, as the low volume means coins get dumped really hard. It can kill a coin before it even has a chance to hit another exchange.

Until coinedup sorts up its speed issues, and attracts more buyers, it's far from being a competitor.