We were debating this exact thing back and forth and decided for the current price based on expected playtime. By now, I have 10+ hours in the game, but you can beat the game to level 80 in roughly 4 hours, which equates to 1$/hour or the regional equivalent in price. We made the style and source code DLCs for people who were willing to pay more or support us, but wanted kids with low allowances to be able to buy the game as well.
Thank you for the explanation, that makes sense. I will be buying your game and most likely the DLC too! Congrats the on the launch and good luck with your future projects :)