I need a new antenna for my television. I saw a wide variety at Radio Shack but a lot of them cost in a range of $20-$40. Apparently you can plug them into the electrical socket and it'll help boost reception (how that works I have no idea). I can't help but think the more expensive ones are just a clever marketing tool used to gouge the consumer out of more money. Should I just go ahead and spend as little as possible for the traditional rabbit ears or should I bite the bullet and get the expensive ones?