I have had friends say they love remembering how dad would kiss mom really passionately every day coming home from work, or dad hitting moms butt, or that seeing mom and dad cuddling on the couch made them happy, because they knew their parents loved each other.
Mine, growing up, never did anything but say I love you and a peck on the cheek. My parents did not want us to be exposed to kissing and touching. Now that we are grown, they give massages and kiss and hug in front of us. I never thought my parents didn't love each other though.
How important is it to you that you show PDA in front of your kids?