It is also worth noting that your crystals expire at the end of the event. As far as I can tell, the only thing you can buy with them is the new card.

It's not that hard to get 130 wins to be honest. I used to regularly get close to 100 wins daily on most of these events, but I play really actively. You get a few burgers as prizes (but fewer than you used to). If you're like me, you have a ton of pudding just saved up because I rarely use it. I still think it's possible, but I'll admit it's difficult.