We make choices based on the game today, knowing it may change tomorrow. In the rare case that they alter a toon to an extreme case, that would be an exception and they have refunded zetas in that case. But just because something else comes out that makes yours obsolete doesn't mean you get a refund. You still have the zeta, and it still works exactly like it did the day you bought it. Was Samsung supposed to refund everyone who bought a 1080p TV when the 4k were released?