Excerpt: Let's take a look at the Yamaha PSR E423 keyboard. If you're searching for a beginner's keyboard and you're on a budget, this one may be an option. It sells for about $229.99 online - pretty cheap. But despite its low price it rivals many keyboards in its price range. I compared it to Casio for instance and have to recommend the E423 instead. This may or may not be the right keyboard for you so read on.