While the game itself is reasonably enjoyable, the prices for the warriors & dinosaurs seem unreasonable. At first they're cheap enough, but once I listened to an ad to get enough money to buy more game pieces, the cost of the pieces seemed to skyrocket. That simply wasn't fair. Plus, just the fact that I have to listen to ads to afford more pieces is really sad. I'll probably play this for a little longer, but if the in-game costs don't improve, I'll uninstall it.