Get a shotgun!
About 8 years ago I paid about $160 for my Maverick 88, and after hundreds of shells later it has never given me any FTF or FTE issues.
If you are willing to spend $400-$500 in a 22 rifle for the fun of it, you should not have a problem spending half that amount to protect your home. And given the title of this thread, I'm sure it will reach a few pages very quickly (again).