So, there are quite a few designs for Wii Light Guns, such as the Wii Blaster and The Wii Zapper and the Brando Magnum, which is teh awesomez. I think there are so many Light Gun Designs by 3rd Party Accessory Developers because they don't have to make the Light-Gun part, obviously. What I don't like is that, unless it's a shot-gun design like the Wii Blaster, it's very awkward to hit the A Button. Not that you'd need to, since all shooters for the Wii are using the B button at this point for shooting, sans Metal Slug Anthology for fairly obvious reasons. But still, it just takes away one more button from a controller that already acts the same way without it.
But why do people even buy these peripherals? I know I want one for Ghost Squad, but I've no idea why. Perhaps just for novelty, but it's not actually a light-gun, so unless you have your distance from the T.V. and the Wii Sensor Bar positioned (and perhaps modded) just so, you won't be aiming at the enemies on screen. It's like a gun-shaped mouse. All it really does is add more weight to your controller.
Also, something that bugs me a bit about Resident Evil: Umbrella Chronicles. From what I hear, the default controls have you shake the nunchuk in order to reload, but when using the Tommy Gun design of the Wii Zapper, reloading sounds like something incredible cumbersome to do, since you're trying to shake an object which is less than one pound, and yet, you end up shaking a large controller shell, and a controller with two batteries in it. Perhaps it will make it feel more like a real gun, but it just sounds like somewhat of a hassle to me. Of course, you can go into Wiimote Only mode, but then you have to have the Nunchuk on anyway for a decent grip on your controller, adding extra weight, when you really don't need it there. But you could get the Brando Light Gun, I guess, which is shaped like a Magnum. Or, better yet, a
Puddy Gun. Or, perhaps, for the sake of logic, use a Wii Remote.