Because it's good?<p>There is no glibness here, just innocence. I like tomato juice, at least compared to other juices, tasty, not too sweet, not too bitter, but I'm generally not a juice fan.<p>I'd much rather drink coffee, water, beer, or wine. Now beer and wine will cost me on a plane (mostly), and I may want to avoid the depressant effects (air travel being harsh enough on the system), especially if I am driving soon after, or if I've gone more than a few hours east.<p>That leaves water or coffee. I've learned to manage my caffeine levels pretty well, so beyond a certain point/time, coffee is verbotten (unless they have decaf, ha ha ha); cf comments on alcohol consumption above, stimulants are avoided for similar reasons.<p>That leaves water.<p>The first few glasses are fine. The next few are boring beyond belief.<p>As for other juices, well, orange burns my stomach and irritates my lips, I might have one glass every year or two. Apple is insipid; maybe a glass or two a year. Other fruit juices are generally too sweet.<p>Soft drinks are too sweet. Period. Not a fan, haven't been since all night D&D sessions in high school.<p>That leaves tomato juice and sparkling water.<p>EDIT: Do people really order more tomato juice, or are you under the effect of the availability heuristic?