Every game has to have a server, if its dedicated or not is a different question...

Flamers

Unless Crytek want to ruin PC sales, they're including dedicated servers.

I know DL but some recent games haven't...

Flamers

You just have to look at the pros and cons of dedicated and host-based servers. With dedicated servers, you might experience less lags for single players as with host games, but when you look down for example the black ops servers, I didn't found any servers without hardcoe and at least 10 players. With the host-system, you can jump in right into the action, still can join open games, and choose what you want to play. Modern Warfare 2 hadn't have any dedicated servers, but was still played all the time by millions of players. I don't think it will ruin it.

if they release Mod Tools and Custom Maps, dedicated server would be essential, but dedicated servers don't really matter on games with no custom maps and no mod tools (like BC2) since you wouldn't notice the difference between a dedicated and official server.