Looks like fun, so I say: if someone gifts me Botanicula, then I will give you ArmA Gold :)
Lol, and if someone gives you botanicula, they will request whispered world, and then that person will want witcher 2 etc etc.
Still, i do like the thought of a gifting chain, rather than just one person getting gifted, a whole bunch of people would save money instead. (apart from the last person, who would get something for free)
Nice thing about it is that, possibly, in one moment a few people might become very happy.
But is there a person who wants to make them all happy? We don't know and it's even hard to expect that... But still.. who knows... :)