A "200lb plasma" and "install another outlet" is a scenario, and a solution, that only a salesman could come up with. In order to be of any credibility you kinda have to start at reality and work up from there. Jus sayin.
As long as its competitively priced (a three outlet extension cord is $1.29) it might come in handy for some folks. As Sam mentioned in your other thread a three prong outlet should be standard, something not always found in a $1.29 extension cord. Usually theres lots of realestate on the back...