The less coins you have...the more scarcity and therefore the higher the value of each coin.

If XST was under 2,000,000 coins the price would be MUCH higher than it is.

Devs are putting out smaller number of coins because they know that it will increase the value.

I like the fact that the XST team went much higher with the coin count than the other anon coins...it shows that they actually want the coin to be widely used and weren't just out to pump the price with scarcity.