My wife and I are going to Las Vegas on a business trip for 5 days. While we're there, we want to be able to keep in touch with mobile phones, and I'd like to spend about $10-20 per phone (including prepaid credit).
This is possible in the UK, where one can buy a Pay As You Go phone for less than £5 and a SIM Card with £10 credit on it. Sometimes you can get them bundled together for £10. That's the kind of price range I'm looking at.
A while ago when I went to Wyoming, a friend advised me to buy a prepaid Tracfone, but that worked out to cost more than $50.
What's the trick to getting cheap temporary phones in the USA?