I often get ginger ale on planes. My reasoning tends to be that, in a day of air travel, I will be drinking more soda than is healthy or comfortable, and ginger ale feels lighter / less "soda-y" than cola. Of course, lately I've realized that train of thought and just started getting cranberry juice instead.
(Incidentally, does cranbery juice carry any kind of stigma of bladder infection? I just prefer it as a "drink during the day" juice, but I've started to develop this irrational fear that the flight attendants always think I am engaging in a Brave Fight Against UTIs or something.)
I've never cared much for RC, but the SO* is a big fan of RC Edge and still keeps a hoard of it that he acquired right before it stopped prduction. I don't entirely grok hoarding soda, especially since he hasn't actually drunken any of this stuff since I've been aware of it, but hey, whatever works...
* Feel free to substitute a synonym for "male object of affection" of your choice if you think "SO" is too PC-sounding.