This reminds me of:
I was browsing inside a Game Stop. I saw Angry Birds trilogy on 3DS for $30. I thought, "wow, really?" After making a selection, I went up to the counter to checkout. I wondered allowed to the cashier, "do people really pay $30 for Angry Birds?" The clerk sheepishly looked down, then told me about how he's getting the 360 version to play on Kinect with his kids. I felt bad for accidentally making fun of him. But there you go, one reason that Angry Birds sells for that much money.
I've gotten $2 of entertainment/time-killing value out of the two versions of AB I've purchased over the years... but, yeah, will never pay more than a $1. Have never come close to finishing an AB game, much less 3 starring everything.