Sad to hear you have given up. I guess if you are patient enough you should be able to get your collection sold for a decent price. I do think the game will still do well even though it's completely broken once a new crypto/NFT hype is in full force.
Personally I don't mind being able to reach higher leagues or higher rewards (they still are pretty high to be honest). I just want a fun gaming experience.
That's exactly my thought - it's boring now. The rewards are boring too.
I didn't started selling the cards yet.
And it's also better for me to waste less time playing games :)
Good luck!