It's not even on a decentralized exchange yet so these are the early adopter stages. In a month when the distributed exchange is working expect 1:1.
The first ever distributed exchange between two crypto-currencies is going to be a pretty big deal, IMHO.
Still, while I'm not planning on selling my own MSC at the current price, keep in mind this run-up is being driven by speculation - a very fickle source of value.
What I'm saying is: it's going to be a wild ride, and even in the best-case scenario there will be some huge pullbacks on the way up. I've said this before: distributed currencies are an inherently risky investment, and nobody should be putting their life savings or rent money into this.
So, only invest money you can afford to lose, and then enjoy the ride, wherever it goes