Low/zero cost is a benefit only if everything else is equal. Eclipse and Netbeans are free, yet people pay for IntelliJ IDEA. We use an expensive commercial GUI

Low/zero cost is a benefit only if everything else is equal. Eclipse and Netbeans are free, yet people pay for IntelliJ IDEA. We use an expensive commercial GUI testing product because all the free and cheaper alternatives sucked big time, and support was either poor or non-existent.