Fair comment, Jeannie.
Buddha is said to have stepped back from entering Nirvana when he achieved enlightenment, choosing to continue in the world and teach others how they can do it too.
Maybe that's the whole point of it. Maybe he actually did go into Nivana by staying right where he was.
I honestly can't see the point of achieving neverending etherial mindless bliss, but as I think I said earlier, the logic of the omniscient is not made of the same stuff as my logic's made of.
(At least I think I said something along those lines)

John