When you check in online for a Continental flight, you're offered "extra legroom" upgrades costing up to $79. Beware! Select a $79 upgrade and you'll be told it's suddenly unavailable, but there is a $19 upgraded seat available. Select that one, and guess what? Continental keeps your $79 anyway! They claim that this is explained on the website, but it's poorly explained and it's still bait and switch. I'll never fly Continental again. read full review »