80,000 is absolutely ridiculous. 40,000 is even too much. It can take up to 25 hours of play time to farm enough money just for one chance at hatching, and if you get the wrong pet/card combination, oh well, time to start again!
I know you want to do it to encourage people to buy crowns, but with the probabilities, does it really matter? It's still going to be a time/money sink.