That's a nice achievement, gratzz, you'll have your 100k SPS very soon.
I'm thinking of buying some SPS with fiat, but I am torn between choices
I also have my eye on some key cards that I want to upgrade to max, like Immortalis, I need 4 more and I'm currently trying to be patient and secure them via bids. I also want a max Lorkus , I need 8 more of those, that's the one that is really competing in my mind for the SPS funds.
I'm not in a hurry though, I think both SPS and Lorkus are more likely to be cheaper in a months time and it looks like bids for Immortalis are being filled slowly. Although I'm not so certain about Lorkus dropping much in price very soon, and of course in a months time we will have a new Legendary Rebellion summoner that I will need to fond 8 BCX of to max ( I get 3 guaranteed from airdrops).
And just to complicate things, I am finding some AMAZING silver level Untamed cards at crazy low prices.
There is always something I need more cash for :-) , maybe the release of Soulkeep will boost my Nightmare pack value , I may convert some of those into cash