Once again, Sony is allowing hardcore PlayStation Network players a chance to earn real prizes with their PSN trophies. "Greatness Exchange" will let PlayStation fans trade in their Gold trophies for entries into assorted sweepstakes. Perhaps the most exciting prizes to go for are the trips.

For example, "The Elder Scrolls Online Experience" will offer an all-expenses-paid 5-day trip for two to Dallas to attend Quakecon 2014 as a VIP. That should be especially exciting for the Shack audience.

Another hot prize is "The Killzone Induction Experience." It includes a 5 day trip for two to Amsterdam to visit Guerrilla Games. In addition to hotel, the package includes a $750 gift card for meals, two copies of Killzone: Shadow Fall, and a gift bag.

There's also a "Mystery Box" that will be made available on November 15th--a rather special day for PlayStation. Every Gold trophy counts as one sweepstakes entry, so good luck. You can enter and find out more here.