I had one of the alarm styles, but he didn't move the bike enough for that to matter.
They work better on the rear from what I've read fyi. (the orange cord that goes to your handlebars isn't a bad idea either, lets them know it's on there before trying to roll it, hitting it, stopping hard and then dumping it. Even the alarm style has to move to go off, so he might be on it with the kickstand up already and just not deal with putting the stand back down when he runs )
And they might be "old", but they don't look it. Reason they went after my bike and not the 4 others there.