The current price is actually the one you are suggesting, at least almost. That is because every unusual price went just up in buds and keys on this site.

This happened because their prices are stored in USD, and the price of ref in usd was changed from 0.45 to 0.4. Keys and buds are tied to the price of ref, so they also went down in worth. So unusuals are now magically worth more keys / buds... I suggest to wait until this problem is solved and then make a new suggestion if it's still necessary.

http://steamcommunity.com/groups/meetthestats/discussions/0/846939071236756250/