I didn't vote because quiet frankly, I didn't fit any of the catagories.
I had several from back in the day, still do somewhere. I got the octopet when they first came out (due to being cheaper, and having different pets instead of just the blob Tomogatchi had) Later I got a tomogotchi when they were marked down to octo's range (mostly cause everybody said how much better they were
hint, they wern't) Later the Digimons came out with the link thing, so you could hook two together and get them to interact. I Actually have tomogotchi and a wonderswan somewhere (anybody remember those?) And when Pikachu came out, I had to get that, it had the pedomiter and at the time I worked a job where I spent the day walking, so it always got exercized all to hell
. Then Furby hit, followed by the various dogs, Aibo, cybo, and osme others and that was pretty well the end of the virtual keychain pet craze. I've never gotten any of thsoe except furby cause they were to damn expensive...some being over a thousand dollars. I still got my halloween furby somewhere too, and one of the little robot things based of Neopets (if that still exists, I think it does)
Anyhow, the biggest problem with "virtual pets" to me, was the fact they required WAY to much care. Real pets do need interacted with, but none of them need fed every 20 minutes or anything, or have a life span of only 3 days max. That was always the stupid thing about those virtual pets, they were to short lived to keep my amusement. Pikachu was the only one I think I had that didn't "die" on you, though cause it was constantly active counting stepsit would go through it's battery relatively quickly.
Anyhow, I'd be interested in modern virtual pets, but I don't think anybody makes any anymore, there's the cube world things I see occasionally, but I think the dogs would be cool, and I'm pretty sure sony doens't make any anymore.