I'll join you in mourning Strada. I'm NC15, and I always found Strada to be a perfect soft contour that didn't look too warm against my complexion. Funny, I never though of using it as an eye shadow.
I still have one, but it's gradually disappearing, which makes me unwilling to bring it out for anything except special occasions.
I'll also say (because I mention this every time someone asks about discontinued products) that I miss some of the edgier Mac lipstick shades like Grid, Ionic, Force and especially Jet... I keep hoping they'll come back, but I think I'm out of luck...
I, personally, would give my eye teeth to have Crystal Rose LipGlass back! Some Canadian on eBay is selling tubes of it for like $27 shipped, and sometimes I have these crazy moments where I get tempted to take the plunge. Sigh. If MAC has a dupe or a very similar shade, will someone be a doll and let me know?
I was so hurt when I realized that they discontinued the lipgelees! Amber Rousse was my absolute favorite grab-n-go lipgloss.
Another item that I miss, and could KICK myself for not buying 20 of, was Icon Eyes. It was an eye kohl from the Diana Ross collection back in 2004 or 2005. I still have my one pencil and I use it sparingly. But it's my all-time favorite liner.
The MAC product I miss the most is Fashion Pack Lipglass, from the MAC Loves Barbie collection. I have been known to spend quite a bit on ebay for this gem. It is my Holy Grail Lipglass, and none of the permanent shades are a close enough match for me.