True if you don't drive in the winter salt !!
Mine were screwed by the goobers @ the dealership. I could tell they had tried to 'rub out' the water spots from leaving it under a palm tree for 6 weeks, which had compromised the surface. The car was a screaming good deal + on the other side of the state, so I took it knowing I'd need to replace them at some point. I was also mulling removing them entirely and doing something different but decided to just leave them.
I can nurse them along for a while longer, but will have to completely replace them at some point. Will be tricky as replacements will need to be exactly the same size (or larger) as I'm sure the paint under them will be noticeably darker