Exactly. Also, at 33,750 gp (15th level caster), such a wand would still have its uses against buff spells and minor iritating spells, like web, or heck, even alarm.
Items that grant low SR or something like this (weak dispel check) are usefull against other magic items, though, given the low caster level these tend to be made with. A dispel magic wand is a great way to take down someone who's been buffed up with wands or a staff.
