Brandon--if you were to perform a card effect like 3 card monte or wild card, and follow it with the cups and balls, would you also use the wand for those card effects?
For the close-up magician, I believe the power of the wand is to make small objects vanish, appear, or change in your hands. I've seen coin magicians like Curtis Kam use a wand and a number of other magicians utilize it in a cups and balls routine. Within that context, where small objects like coins and balls vanish, change, or appear, it makes perfect sense to wield a wand.
In his text Charles Bertram the Court Conjurer, Edwin Dawes devotes a chapter on the wand titled "Bertram On The Use Of The Wand." Dawes writes:
Bertram also expressed views on the type of wand to use, favoring a plain, polished ebony style, a little more than half-an-inch in diameter, and about sixteen inches in length, without any ornamentation. Indeed, he was dismissive of the more ornate type of wand, commenting, "I have seen performers using a wand made with two silver serpents coiled around a tortoise shell stick, and surmounted by a large ivory death's head--a very massive and elaborate arrangement indeed, and others using a massive silver-plated baton, something like a Lord Mayor's mace in miniature; these massive wands seem to me to be out of place in the hands of a conjurer, the mystic touch of a necromancer could hardly be imagined to be given to a delicate article with an unwieldy instrument, heavy enough to break open an ordinary packing case. No! I think the less pretentious the wand, the more the idea of mystery is conveyed."