I'm pretty sure we don't, haven't seen any alarms go off on them in a loooong time. Between the lock up cases, locking peghooks, spiderwrap and the other odds and ends we do there really isn't much of a call for EAS to control inventory. Besides, they are only a nuisance to most thieves, they can be easily removed if you know what you're doing. Hell, even the movies that use them don't have them in every case, more cost effective to just make people THINK they could get caught.
At my store (very high theft risk) uses EAS tags on a lot of stuff. But EAS tags have changed over the years. Now there are more of the sticker type of tags rather than the big black or grey things that punch holes in whatever they're put on. With the sticker tags they can be put on clothing label tags, cardboard boxes (i.e. the stop smoking patches), and on certain books/games/movies and other small items. They can all be deactivated at the register via the demagnetizing capability built into the scanner. Though you do need to make sure you get a good angle/contact with it because it doesn't have a very far range (so that it wont screw up credit cards and whatnot).
Our EAS towers at work go off ALL THE TIME. Sometimes because people have things on them made of certain metals that fool the sensors.