Not all of us have have alarms on them. And when you have certian activities that you need to get done quick or ride in a pack, you will probably get left and have to play catch up. Because I know if YOUR ass aint ready, YOUR ass gets left. No if ands or buts about it. It takes 15 days to start a true habit. So if you want one get one. I will never have one. Just leave your bike in gear and lock the front trees. Duh they come with them on it. no need to buy a bunch of extra crap.
Oh and to the guy that made the comment about the house key, I don't lock my doors. Due to the fact that where I live EVERYONE knows who I am and What I will do if you "break in to my house" I live in Georgia and all you have to do is step on my property and I can drop you like a bad habit and say that you threatened me. I love that law.