i am usually with the wife and kids when international, so would it not be worth it unless everyone did it?
yes All should do it.
unfortunately for me I couldn't do it because of my past working in the Sportsbook business. Traveling International, I need to get there 3 hours before, instead of 2 hours so they can give me a hard time with stupid questions.
Just reporting back that TSA Pre was a breeze to get (my known traveler number was available within 3 days online) and has already been a huge time savings the two times I've used it. Since there is a dedicated security line it is already shorter and then it moves quick as noone has to take off shoes, belt, take out liquids, pull out laptop....highly recommend it. My wife flew with me to a wedding and when she saw how easy it was she signed up right when we got home. Also with kids, if you have it, they can come in the TSA Pre line with you as long as they are <12.