There are some "what if's?" to consider about open carry on your own property.
What if you've had a spat with your next-door neighbor, and for revenge he calls the local police and says that you were aiming your handgun at him through your front window? The police respond, get the "BS" story from your neighbor, then approach your residence to investigate the claim. You greet the officer while openly carrying! OOPS! Sure, you are within your rights for open carry, but since the officers weren't there and you have been accused of "assault with a deadly weapon", the firearm openly carried on your side makes the situation a very "sticky" one for you!
What if you have to run out of your home and off of your propery for some reason, forgetting that you're openly carrying? You're no longer within your "castle", and on public property. Chances are that there WON'T be any police around, but....!
As far as I'm concerned, concealed is the BEST, if you feel the necessity to carry a firearm while at home. If you have "home invasion" bad guys burst in, they won't immediately SEE that you are armed, so you might be able to get the drop on them. Walking around inside your home, or on your property, with a concealed weapon won't accidentally "offend" or "scare" anyone, so the local police won't be called.
Personally, I'd rather not have bad guys KNOW that I'm armed. Keep 'em guessing!