Yup. In my game I don't explicitly ask for a wish list, if I need some input I just ask them casually what kind of items they'd be interested in. More often I feel that I don't even have to ask:Part of the problem is that most players don't like homework. Scouring all the books for magic items is homework.
If I see that my Barbarian player has created a charge build, it's a safe bet, he'll enjoy getting an item that will boost his charge ability in some way.
If the Cleric player complains he's missing too often, it's probably time for a better implement.
If I notice the Fighter goes down often, he'd probably be happy about something that either improves his defenses, allows him to heal himself or increases his hit points in some way.