Love the input, Sirrian! I’ve pretty much felt the importance of longevity since starting the game.
I do feel bad I’ve yet to spend anything on it, which is why I try to make up for that with my presence on the forums. Helping newcomers, explaining mechanics, etc. Small consolation, but I do what I can! 
Don’t worry about it, making the game TCG over CCG has been suggested since it’s likely creation. We all want a faster way to collecting that one or two cards we need instead of playing RNG. But hey, it’s gotten you to stick around, hasn’t it? 
I believe Better Heroes is the main focus presently, with Better PvP tailing close behind. Improving Guilds is in third place, but that’s not a bad place to be considering all the other features people want implemented.