How much would you sell a Bag of Devouring for ?

Considering that being eaten by that damnable bag is about the same as being fed upon by a barghest, i would not set the price low. I also would not sell the item due to the danger of it coming back to bite me in the ass.

Bag of Devouring said:

Creatures drawn within are consumed in 1 round. The bag destroys the victim’s body and prevents any form of raising or resurrection that requires part of the corpse. There is a 50% chance that a wish, miracle, or true resurrection spell can restore a devoured victim to life. Check once for each destroyed creature. If the check fails, the creature cannot be brought back to life by mortal magic.

Feed (Su) said:

When a barghest slays a humanoid opponent, it can feed on the corpse, devouring both flesh and life force, as a full-round action. Feeding destroys the victim’s body and prevents any form of raising or resurrection that requires part of the corpse. There is a 50% chance that a wish, miracle, or true resurrection spell can restore a devoured victim to life. Check once for each destroyed creature. If the check fails, the creature cannot be brought back to life by mortal magic.

As it happens, I suspect the bag HAD a price, only removed prior to printing. Otherwise it stands to reason the non priced items would have been placed at the beginning or ending of the cursed items tables. Thus the 'value' should fall between the 10,000gp and 16,000gp

01-05 Incense of obsession 200 gp
06-15 Ring of clumsiness 500 gp
16-20 Amulet of inescapable location 1,000 gp
21-25 Stone of weight 1,000 gp
26-30 Bracers of defenselessness 1,200 gp
31-35 Gauntlets of fumbling 1,300 gp
36-40 -2 sword, cursed 1,500 gp
41-43 Armor of rage 1,600 gp
44-46 Medallion of thought projection 1,800 gp
47-52 Flask of curses 2,100 gp
53-54 Dust of sneezing and choking 2,400 gp
55 Helm of opposite alignment 4,000 gp
56-60 Potion of poison 5,000 gp
61 Broom of animated attack 5,200 gp
62-63 Robe of powerlessness 5,500 gp
64 Vacuous grimoire 6,000 gp
65-68 Spear, cursed backbiter 7,500 gp
69-70 Armor of arrow attraction 9,000 gp
71-72 Net of snaring 10,000 gp
73-75 Bag of devouring —
76-80 Mace of blood 16,000 gp
81-85 Robe of vermin 16,500 gp
86-88 Periapt of foul rotting 17,000 gp
89-92 Sword, berserking 17,500 gp
93-96 Boots of dancing 30,000 gp
97 Crystal hypnosis ball —
98 Necklace of strangulation 60,000 gp
99 Cloak of poisonousness 62,000 gp
100 Scarab of death 80,000 gp

Though if you want a dissenting opinion, back in 1E Gygax set the selling price at 1,500 and those devoured were "forever gone".