[quote name='Roufuss']I used to play SoE and City of Villains, and I still get updates on them through my email, and both games still seem to add stuff in on a regular basis without an expansion pack.[/quote]
CoH has been out longer than WoW has (by about six months), yet has had only about half the updates. In addition, the WoW updates tend to be much more robust than other MMORPG updates.
Nostalgia time - I remember playing Asheron's Call way back in the day, and their updates added new content that was completely explored and played out within six to eight hours of going live.
Anyways, I agree on the price of the expansion being high. $40 is rough. Seeing as how they can potentially sell seven million copies, I don't see why they can't give the players a break. Yeah, capitalism and all that, but there's something to be said for currying good will with your playerbase.
As for the CE, if it's limited like the original, buy early and buy often. Those babies still sell on eBay for $300 or more, if it's still sealed. Even opened, used copies can get $50. If they make a ton of them, I'd be wary of 'investing' in a copy.
For the record, the original CE was limited to 75K copies I think.