Microsoft decided a while back to drop out Microsoft Points and start using real currency on their Xbox Live Marketplace. A beta of the new dashboard was made available a few days ago, and a user of Reddit noticed a few things regarding games and their prices.
First off, old Microsoft Points are now transformed automatically to your local currency and they do have an expiration date. Second thing, and the most important one is that Microsoft has used the occasion to hike all of the prices. Well, not a good move Microsoft as more and more people will start noticing and complaint about it. You can read his example right here.