$100 is exactly the money what you’ll pay for Otterbox’s Armor series case, billed as “The toughest case ever built.”
That’s a strong claim, and it gets stronger. Otterbox says that the case is completely waterproof for a half hour in water up to 6.6-feet deep. It will also withstand drops of ten feet, and laugh off crushing forces of up to two tons. And it’ll also keep out dust, all whilst looking pretty slick for such a tough customer.
The case, which will be available in February, uses o-ring seals, metal latches and all manner of sealing mechanisms to keep your iPhone safe. The only challenge is to keep your iPhone undamaged until then.
For me I won't pay that much for a case unless my iPhone asked for it!