Doing so, will make
"android" command available in CMD/CLI so you can invoke various Android SDK tools commands such as :
 - Creating Android Project (YES, create android project)
 - Update Android SDK from the console
 - Manage Android SDK
 - List SDK Packages
 - Connect your Android device to your PC
 - Install your app from PC to your device
 - Copy file from PC to Android device or vice versa
 - Take screenshot of your connected device right from the PC
 - Record your device activity as video
 - Hacking your droid phone from PC
 - Etc.