I 8-box and I haven't had an issue paying with tokens. I always buy the 6 month codes to save. To keep 8 accounts going you only need to make ~25k a day. Three subs is less than 10k a day. I do not farm, I gather ore and herbs while I go about my WQ and I make more than enough to keep me going. Aside from buying tokens I don't have many expenses since I haven't been pushing mythics or anything like that.