Personally, I'd like to think that the good games will still rise to the top. Monument Valley wasn't a fluke; it's a game based entirely about the art and the content, rather than stale one-off game mechanics that could be cloned in an afternoon. It got noticed because it was deep and unique. (Did they even do any marketing?) I've rarely found a game with that same level of quality that got no attention[1]. Most of t…
One note about Monument Valley though: When they added new levels and charged for it, there was a big backlash at first. Luckily there was a counter backlash but it still shows the expectations of most gamers in the apps store. Especially on Android.
In any case, whining aside, I doubt their sales suffered too much! And I'm glad we're getting more high profile pay-up-front games like MV to reset buyers' expectations.