Funnily, I made a completely opposite decision than yours. I was a dedicated GU player on the weekends and now I am taking a hiatus from it. Granted that's partially because I didn't enjoy the current meta with my self-earned decks (I was F2P2E) and I don't really want to invest a lot on the cards to get the current tier 1 decks. With the immutable marketplace in place now, the amount of players having all the tier 1 decks are higher and I just can't compete well enough.

I look forward to the next expansion though.