I actually just posted in the letter from the producer LIVE IX about this. If anyone here has actually crafted Hi-Elixers, about how high of a percent chance did you have of HQ? That is the only reason to craft them right now, but, we're looking at about a 100% loss if it isn't HQ because the prices are so low from what Pyros mentioned (everyone running castrum).

This is actually true for pretty much all potions, while you can definitely make a profit with HQ potions, if they aren't HQ, they're generally worth less than the materials. I know I can still make money off of Mega-Potions, but the prices for X-Potions on Malboro (last I checked) were approaching the price of Mega-Potions.
Plus, elemental resist potions are also pretty much worthless, since they give a buff for 15s, are super circumstantial (15s is like one defense buff against one AoE in a primal fight, and the potion for each primal fight would be different, with only 3 being currently useful), and from what I've heard, the elemental resistances really don't help that much. The damage mitigated would be better restored by a shorter cooldown potion after the attack, and it'd be a too close a shave to predict if you would need the potion to save yourself since they don't mitigate that much.