I think the integration with the rest of the creative suite is good enough reason to buy it if you do use it. I don't use it myself it just came with the pack I got. I don't know any of the old tricks and never used DW8 extensively so I'm talking from more of a first time user point of view. DW CS3 certainly has more features though. The spry integration looks cool too but I don't know what sort of code that produces.

Pete.