When Buying Points and Miles Is a Good Idea (and When It's Not)
by Charlie Lewis from Lifehacker on (#62AX1)

Buying points without a specific use in mind is typically a bad idea. Unless you're a very experienced travel hacker who is okay taking on a little bit of risk, buying flyer miles or points is usually more expensive-or more hassle-than what they're worth. Plus, airline and hotel programs can change what points are...