Seriously now, we don't actually HAVE unobserved cats, do we? They might like us to think so but a cat in a box is going to be measurable every time. They, and everything else macro, just don't go all at once into that unmeasured, unobserved state.
Only that little divine spark meets the radioactive atom at the OK Corral. The rest of the cat gives us the score later, no? The rest of the cat doesn't really change; in fact it stops changing, if it comes up dead.
Well if S. did have a cat I hope he called it Plato. ;)
The 'cat state' is an unobserved state (if such there be). Once you peek in on the cat, the superposition of states collapses to a single state (so it is said)...unless you hold that each state in a superposition is just as 'real' as any other and that, at each observation, a system splits into separate, equally 'real' systems that continue to develop in complete separation from each other. This bewildering, branching view of 'reality' is called 'the many-worlds interpretation of quantum mechanics' and is the preferred view of 'reality' of many quantum physicists.