Pax said:
Yes, it does. Wearing a charm or amulet which has an effect on yoru mental abilities has a long tradition behind it, in terms of real-world mythology and folklore.
So if something doesn't have a background in folklore Out-of-Game, it costs more money In-Game?
Storm Raven had a very valid point- probably the most valid point yet. If you're going to live in a world where an amulet around your neck makes you wise, or gauntlets on your hands make you stronger, and thus, better at jumping, or a cloak can make it harder for people to invade your mind, there really isn't anything out of the realm of possibility for a set of boots that let you see through illusions. Heck, there's a set of boots in the DMG that let you get an extra attack with your sword per round. What sense does that make?
Look, my point is that it's alright to encourage items to make sense, but if a character wants a Belt of Charisma +2 rather than a Cloak of Charisma +2, what's so bad about that? Why make him pay more? Is it harder to use a smaller amount of material as a belt than to make more material into a cloak? Does it require more magic because it's farther away from your head? What?
Anyway, it's just an interesting idea, but it should be a guideline rather than a rule, and there shouldn't be penalties for uncustomary body slots. If you're willing to believe that a belt can make your arms stronger, then I don't think it's so far out of the realm of belief that a pair of boots could make you stronger just as easily.