You must choose the way which is the best for your business.
My opinion is that you have to go with both.
You have free games where you can win some share of TC, and with playing games using TC, you earn MRP.
Second way to use your TC is to participate in auctions where you can win really great stuffs for extra money. And do you know what is new on auctions? With every 50 bids,you earn new PSA. It's amaizing!
Think about it and decide what is better to do.
