It always seemed to me that gift givers are much more inclined to give a tangible object than a small box containing a 'game disc' or similar. I don't have any

It always seemed to me that gift givers are much more inclined to give a tangible object than a small box containing a 'game disc' or similar. I don't have any sources to back this up, but I suspect this reduces the impact from having to buy the accessory. The gift giver gets to give a big present that gets furiously unwrapped, and it's a great game to boot. It pays to sell to the buyer and not just the consumer, and in this case the buyer was often giving the game as a gift.