Fix issue mentioned in #152: price updater loads all cards now.

This seems to have fixed some issues on my system. @ZeldaZach Can you try this version and see if it fixes your issues as well?

Before:

![broken](https://cloud.githubusercontent.com/assets/454057/3696412/18777140-138e-11e4-93f3-4ba313df5a43.png)

After:

![fixed](https://cloud.githubusercontent.com/assets/454057/3696414/1d57cc96-138e-11e4-866e-a8ecf07e4a5c.png)