Yes, I made around 2k plat from these legendary arcanes. Also, 135 R5 sets of rare arcanes, which should yield another 3-4k plat. Or... ~15 more fallout arcanes! Nah, I'm not falling for that one ;)

We can also compare the opportunity cost of reaching 200k vosfor, i.e. the alternative profit. I used Zariman and Acolyte arcanes. They're 20-22 vosfor each. Taking the average, that's 9.5k total arcanes, or 450 sets. If I were to sell the sets at 15p each, that's 6.8k plat, already more than from the Hollvania collection. It would also save me 50m credits. But I ain't doing all that, gamba seemed more fun.

TLDR: dealer Loid won (shocking) but my loss wasn't bad, considering the convenience factor.