If sesame was a more common item in the market it would be ok. But very often it is just gone, coz no one sells it :v
And if you happen to need that Hit in that moment, too bad for you.
Military Ration is easy and basically free to get(faceworm is a joke these days), feels better to use the item just once instead of Sesame every 3min (depends on what you do), etc.
And if it were to really consider the price for each run, you wouldnt even use GX, simply because of EDP. Other classes can do the content with absolute 0 cost.
Technically you don't need EDP for Faceworm, maybe Queen at best?