Originally Posted by: schmangeI wonder if it's true that you can buy a second plane ticket just for your guitar?
I've read about people doing it so they don't have to risk putting it in with baggage but never actually tried it.

Of course you can do that. But I don't see why that would be necessary, since the flight attendants usually don't mind putting your instrument in a closet somewhere. Buying an extra seat in only required when the instrument is too big to fit anywhere else.