On the topic presented, the point that keeps resonating with me, is that Paizo is going to lose everyone that goes over to 4E. Every poll I've seen with any weight shows that more people are going to 4E than not--so it's a fair speculation that more of Paizo's market is going to move to 4E than not. It feels pretty unlikely that Pathfinder is going to bring in more players than Paizo has leaving for 4E.
And they do make some awesome adventures, I'm not in high-school/college anymore, and I don't have time to make long, expansive campaigns up. I learned the name Paizo when looking for pregen adventures! But I'm going to 4E, so I'll be looking to Necro, and hoping to see Paizo when the switch is over and the dust settles.