Fact is the haze and etching will come back, even new units seem to be prone to this. When I see mine getting that way, usually after 3-4 months I break out the Scratch-X and the Porter Cable and they are better than new in no time. For the guy that paid 60 bucks.......next time I'd advise you to buy a Porter Cable buffer and some scratch X. It'll take you all of 5 minutes and you can use the PC to buff your car.
Pat