I take the train. In fact, I am going to San Francisco on the train next week-end. It might be a long trip, but it is relatively inexpensive, I don't have to show up two hours early so that I can be submitted to a cavity search, and in fact, I pretty much get to keep all my clothes on unless I decide to remove them.
I can bring up to 5 pieces of luggage free fer nuthin, nobody wants to search them, no dogs are going to sniff them, and they are all readily available to me if I need something from them. There is no limit on the size of any of the toiletries I bring with me. None of the employees I come in contact with before, during or after the trip work for the TSA, so there is no chance of an abuse of power. I can bring all the food and beverages I wish, including alcohol, and I have more room than the average first class airplane seat in which to enjoy these libations. If you decide to not bring your own meals, the train has both a snack bar where you can buy hot or cold sandwiches, snacks, and beverages, including beer and wine, or a dining car that serves complete hot breakfasts, lunches, and dinners prepared by a chef and his kitchen crew and served by white coated wait staff.
I do not need to EVER be strapped into my seat and no one ever tells me to turn off any electronic device at any time during the trip. I can move around the entire train at my leisure without having to worry about being pinned to the overhead by unexpected turbulence, and if I don't like my traveling companions, I can always proceed to the observation car and check out the goings on in your average American's backyard. Unfortunately, they don't have Frequent Railroading Miles.