Put it this way. No Morrison? Didn't buy X-Men, didn't care(in fact, always hated X-Men). With Morrison? Even bought ones with(ech)Silvestri. No Morrison? Forgot they existed.
No Morrison? Hadn't bought any Bat comics since 1990. With Morrison? Etc. And so forth.
I have nothing invested in continuity. I'm only interested in seeing how he plays with it. They're only corporate franchises that will be right back to the way they were once he's done. None of this actually matters. It's just fun. If done by talented people like these two. Otherwise, couldn't really give a crap.