Originally Posted by
dubar
In long term in will be problematic.
Because you are not only one who farms them, on my server there are like 1k marks and around 400 armanents at time, with 1-2 sellers, most probable from bots.
Once you try to sell a lot, someone will begin undercutting you. It will be possible to sell them all, but not for fixed price, you will have to undercut undercutters. It will be lil bit hard to undercut bots (tho it depends on your server, if there is ppl who farm marksarmanents via botting)
Overall it's possible, but quite risky and may not give you good result against time you spent on it.
[EDIT] missed Darknights post, he sayed same thing.