I got ZZ Top's Rhythmeen today at Barnes & Noble for $4.99. I know that's fairly old by 15, but it's considered past their prime. I saw it reviewed on a YouTube show called Music Worth Buying. They gave it a glowing review, so I decided to buy it. It sounds like classic ZZ Top, but with a modern twist. No synths, though. This thing rocks and grooves like a bitch.