That's a very good concept, and the art is very clean ! Although, I think something is missing to really enjoy the game, like the concept of all has to be paid could be very good but now it's like you are in front of a gambling machine and you are sure that you will never win... We continue to play game because we want to progress, see new things, unlock new feature or just get better. Here, nor of these are present, but that's can be normal for a jam game if you didn't had the time to implement all that you've planned
That's still a great entry for the jam, congrats !