I think what he's trying to say, as far as protecting your investment. I compare it to using a screen protector on a new phone, while the protector may not be the same quality it does prolong the life of the glass. If hunting where you run the risk of high debree on your lense then in say 5 years when your glass is scratched what will your quality be? If you bought the covers and they became scratched you can just replace them for way cheaper than buying a new scope. I don't use them though. Just my 2 cents