I'm annoyed to see them wrapped, it's just another way to waste energy and make polution.
Here in france, it is becoming ever more popular to wrap them, which means they can be processed faster, which means less people to carefully place them, the plastic is quite thick.

I have found that they do not last any longer than unwrapped.

Once I start seeing individually wrapped carrots I know that we are doomed.
We're not far off with cucumbers.