All I know is that I buy a ton of cheap $2-10 games when they're on sale on Steam. I don't buy any games on Xbox Live due to the lack of good sales and their co

All I know is that I buy a ton of cheap $2-10 games when they're on sale on Steam. I don't buy any games on Xbox Live due to the lack of good sales and their convoluted MS Points system. I don't understand why they don't follow Valve's example.