I need a pocket flask. My knowledge of such things is somewhat limited - is this one of the rare items in the world where you can get the super cheaply made metal one that is in a holiday gift pack? Or do I need to go to some store and buy a $100 for it to last more than 2 days of use?

I wont be putting it through anything rugged I dont think - just the usual suspect cases where you'd want to carry a little scotch or bourbon with you.

I'd love to know what people's thoughts are.