I'll chime in here, because this has been a very good read with sensible topics from both sides of the aisle. Thanks for keeping it on point!
@Heed_04, @warheart1992 described the mechanics pretty well. After that it's about whatever entertainment value any player assigns to any specific item.
I've a Steam library full of games - most of which i never even played once. Why? Gabe is also not gonna give me a physical copy of any of them and I'm not sure I'll ever get to playing any of them. However, i collect and support unique concepts - artistry in game design. Then there are games, like the whole portfolio of Supergiant Games, that I own in multiple copies on different platforms and actually play.