Originally Posted by alohadave
No, unless you are in a place with sea/water spray or blowing sand/dust, it's not worth buying a filter for every lens you have.
I second that. All my lenses have some filters and I mean a multiple of them without the glass though.
The glassless filters do provide protection usually my finger print. If my lens falls, the filter rims will absorb majority of the impack shock. I find hoods offensive too particularly those huge petal shaped one. I put them away in case I need to resell the lens.
Daniel