An EZ pass costs $10 for your car. That is a 1 time payment. As someone that uses toll roads daily I saved that cost in a single month from traveling. And I don't need to try and find cash and coins lying around (don't carry cash at all).

I have never met anyone in my life that has returned old plates. I knew someone as a kid that had all their old plates displayed in their garage. Didn't learn until a few gears ago that you are supposed to send them back in.