i forgot to add, there is an old saying " there are 2 types of luggage, Carry on luggage and Lost luggage" check your bag enough times , and it will get lost eventually. Sometimes it takes a week for them to find it, if at all. I would much rather have all my belongings on my back. as someone in the travel industry, you have NO idea how often these airlines lose things. I just read a story a few weeks ago also about a couple who just finally got caught stealing suitcases from the airport in phoenix. when the cops went to their house, which was a large house with no close neighbors, their house was FILLED with hundreds and hundreds of stolen suitcases. How many ruined vacations did they cause? No thank you !