Ok thanksGlass (coatings) and clicks vs friction adjustments are about the only difference (in broad terms). But if the scope is clear and tracks as it should don't worry about it.
Ok thanks good to knowI had a Leupold Vari-X 2 6 power that I bought used in the late 70’s or early 80’s. A couple of years ago some glass came loose. I sent it off to Leupold and they sent me a new one. And twice I sent them old Vari-X III’s for reticle replacements. They did as I asked, and refreshed all the internal parts. Only the reticle change was at my expense.
