Unfortunately everything is more expensive these days. That includes the price for Stern to make these games. It's the same reason why $15/hour McDonalds employees means that you will now have to pay $10.00 for a Big Mac meal you used to get for $5.00...
Can't have your cake and eat it too. The economy is thriving and unemployment is low. People have disposable income, which means that everything you buy in the world is going to cost more. In the middle of the next recession, you can buy $5,000 pins again. Of course you won't be able to afford them being out of work and all...