Hate to break it to everyone but people aren't winning 70-95%. Even the best on average is only going to win 60% of the time because of how much "luck" is in this game. With the removal of league caps you're going to find yourself constantly matched up against players who have better/more cards than you and therefore expect to lose more games and settle around a 50% win rate that will keep you even once you hit a point where they want you to buy more cards to have a “better chance” of winning. But as they stated this game has a "significant amount of luck". It would be dumb to invest another couple grand to max multiple cards when that is only going to get you an additional 10% win rate, at best. For example it would cost about $12k to max all the cards in modern format at diamond. Silver would cost $3k. I don’t see someone wanting to drop $9k to max at modern diamond to win 10% more of the time. Imaging buying extra energy at 500dec a pop. You buy 10. That’s $5 and you only win 5 of those games. Did you make $1 off each of those wins? With Sps at $.027 you need 18 Sps to get just half that back and then hope you get extra value in chests.
Doesnt seem worth it. But hey that’s just me.