A few examples are (I actually have these)
Ace's Mail
Akvan Bullet
Lux Dagger
3 pieces of Athos

That's 6 right there and that's not even everything. All things people want and would buy tickets for, all things that are 100% worthless to me. (I've saving them for now in case Altana forbid I ever level jobs using them and I've already dropped them.) Now imagine the other half dozen bodies, the Ig-Alima and Rex weapons, Qilin HQ dagger/boots and who knows what else. Oh and the tickets for the 6 I already have should I see more of them drop (all but Ace's I've dropped at least one of) Its the only flaw I currently see in the system. All it takes to fix is A) fewer tickets or (much more likely) B) reconsider and allow the first drop to be converted as well. (even if it takes 2-3 conformation screens if that's what the DEVs are worried about)