IAP Purchase to support the development of my game Arcade!

Hello,

I created a game named Arcade (AppLab).

Some players asked me if they could send me money via paypal.
They told me that I deserve more money, because the price I asked was very low compared to the quality of the mini games included.

So I decided to use IAP purchase (ex. 1$ 2$, etc...) to allow players support the development of Arcade.

I think it's ok, but I wonder if any of you have experimented issues with that?

Thanks.