[H] Bundles (Humble, Indiegala, Groupees...) [W] Sack of gems

I buy bundles for sacks of gems.
Prices:
1 sack of gems for each 0.50$ the bundle costs.
Example: The Humble Weekly Bundle costs 1$ -> 2 Sacks.
Bundle Stars costs 2.10$ -> 5 sacks.

Don't add me to Steam until you comment here.