if you dont use it that way it will be like this

widget VAR Byte
widget = 155

and there is a possibility if your program is large that you might change widget = ?? something else later in your program
also say you want to tell widget that it is 25000 halfway into your program, but you only delared it as a byte, so it will
generate an error. but if you use CON then hey it auto sets the Variable size