The monthly cost is around $50 a month, which adds up real quickly. Considering the archive went live 7 months ago the total cost just for hosting is around $350. This isn’t even counting the original archive process last December or the database import, which cost an additional $100-$200 (at least).
I’d say it’s already a feat that the donations paid for hosting for 6 or so months (the archiving costs came from me), but they’ve been dwindling ever since release and it’s going to start digging back in my pockets which just aren’t deep enough.