Where does it show they're discontinued? They're still listed on the Vortex site. I have a set and love them but have thought of selling them now that I have a spotting scope.
My guess is you got a link to the previous version that was discontinued a few years back when they got upgraded. I bought a used pair of those and didn't realize I got the older style, which at first pissed me off. It turns out the upgrade was just new eyecups and Vortex sent me a free replacement set along with instructions so I'm good to go.