My suggestion for a sort of roll-over timer would still be appreciated. It would still restrict people to one game a month, but once it hits the first of the following month, it resets to let people buy one more game. It would be easier to manage than having them wait a full 30 days. At worst, you may see people by a game two days in a row, but that would only happen if they wait until the very end of the month for one month to buy a game and then buy a game at the beginning of the next month, and that wouldn't really be that big of a problem. Alternatively, a timer like Deadman mentioned would also be appreciated.
Links to the store page or including some media from the store pages (videos, images, etc.) would help people preview what they are buying before they buy it.
What do you think about adding a timer/date to when you can buy another game from BX?
Since we're restricted to purchasing one game a month it would be nice to know when exactly we will be able to purchase again.
Also, as someone else suggested, it would be great to have a link to the steam store page or somewhere similar. I know that before I buy a key from BX I have to google the name of the game and go to the steam store to get a gist of what the game is like.
Alternatively, having an image gallery on the game pages when you go to buy a key/look at the game would be neat.