Yeah, I think that's slightly goofy - if you don't buy all, you don't get as much of a discount. It doesn't really seem to make sense: buy less, pay more! But I imagine they have some sort of reasoning behind it, even if nothing is coming to me at the moment.

And like others said, if there's something you don't want, you're still getting the games you want for less, and then you can do a giveway/gift/trade/hide.