Some people need them and some people do not. I think they are a great solution for those who have jumped into a deal without the ability to tow handle it. As well I think some drivers such as myself who have had bad experiences will spend extra money on a hitch for peace of mind.
Does it mask it or fix it I think can be argued based on the setup you choose and stance. I beleive some are engineered to correct a problem after it has started to happen and correct the issue and others stop it from happening. It would be like taking a dual meal and didn't spice to it to make it taste better, is it correcting the problem or just making it taste better. My opinion is if it made it so I could eat it, the problem was corrected.
