Basically non of your business
I am sure if you were a card, you would put a lot of Secrets in play.
Aaanyway I think I bought those 20ish E packs three times in Vanilla days, at least one in GvG times, bought at least two expansions with money too so that is about 2x 20E again. I think that's it, I did not buy anything in TGT and I think I got League of Explorers for gold. So that would be around 120E total.
However the introduction of Standard/Wild divide infuriated me and I swore I won't give them a dime until they either undo that or massively improve the game in other ways to make up for it. As you can guess I am a major proponent of voting with your wallet, only support them if they deserve it.