Trap crafting rules:
The cost of a mechanical trap is 1,000 gp × the trap's Challenge
Rating. If the trap uses spells in its trigger or reset, add those
costs separately. If the trap cannot be reset, divide the cost in
half. If the trap has an automatic reset, increase the cost by half
(+50%). Particularly simple traps, such as pit traps, might have a
greatly reduced cost, subject to GM discretion. Such traps might cost
as little as 250 gp × the trap's Challenge Rating.
So crafting cost even if you say its a simple trap is 250GP.
Trap, bear: 2 gp
One of my players is thinking about going into trap making (mostly for setting up around the camp at night) but is rightly pointing out that they seem extremely expensive…and make no sense at all when you look at the given price of a Bear Trap to buy (2gp) or to craft (250gp).
Is there something we've missed?