R5/FCX vs. R5/B

Why would someone spend money on the B tool, and then turn around and buy the R5/FCX?

Most often it is because people are not aware that the R5/FCX does everything the B tool does, and much more. Without question, most repair shop visits are in response to the Check Engine Light, triggered by minor problems. A single diagnostic fee from a repair shop is about equal to the difference in price between the B tool and the R5/FCX. When you are faced with a check engine light, the R5/B will not help you. So if you are the type of person to buy and use the B tool, you are clearly capable of using the R5/FCX. The savings in vehicle repairs will really surprise you!