While I do have several shotguns, I personally would not use one for home protection. Sure, the scatter is a good option to make sure you hit your target. But the problem is you also hit the wall, windows, drapes, other family members...etc. I personally purchased a Ruger 9mm, the recoil isn't horrible and the wife doesn't have an issue shooting it. I chose 9mm as the ammo is cheap for practice. I bought the Ruger because it fires any ammo you put in it. I have a Sig Mosquito .22, and it will only take premium ammo, otherwise it will jam. Cost isn't a big deal with the .22, but it will be with higher calibers. Do a lot of research and perhaps go rent a few to fire at your local range.
Justin - Keller, TX
"Success is a journey, not a destination."