Show only products <= than the total of reward points

Hi Guys,

I´m thinking about the following idea:
To have a category created and name it something similar to "reward store" which will show all products you are able to purchase with the total rewards points you currently have.

Let say you have 50 reward points on your account, and you click on the "reward store" category, it will show all products in your store which have a cost of 50 rewards points or less.

Any ideas or suggestions?