I threw away a nearly complete set when I moved across country last year.
I loved Omni until they went off on a weird tangent and started including UFO and paranormal material as regular features - it wasn’t just that material, but a devolution of the whole magazine that made me give up. I even recall the specific issue - a dark blue, black and white cover with a fantasy zebra and something like “The Death Issue” for a headline. It was like a completely different magazine from every issue before.