Spellstone is still my go-to online CCG, because I always seem to have one going. I have been playing long enough that I now have a top-thousand deck, and I am increasingly meeting the players who pay for the servers to stay up. I used to mentally refer to them as “hundred-dollar decks,” but looking at some of these top decks I run into, no, these are definitely thousand-dollar decks.
Spellstone always has a couple of premium card “boxes” running, and buying one out completely costs $300-$400, depending on how you buy your RMT currency. The reason to buy one out is to get 4 copies of each premium legendary, because you upgrade and combine them into one quad legendary. You can get 4-6 quads out of a full box, limited to 4 copies of the same legendary. I see decks that have three copies of the same quad premium legendary, meaning these folks had to buy out at least three boxes, and those are for recent cards so these folks are paying ~$1000 for that deck and will need to do so every two months or so to keep up with the P2W curve and shifting environment.
I know in principle that people spend this much on virtual card games, but I did not really get it until I saw the fight in the P2W ranks of the game. I should know this because I played Magic: the Gathering when it first came out, but it is still surprising to see, and I wonder about things like stolen credit cards.