I thank Valve that for once, they don't seem to plan on removing the demo, like they did when L4D was released. I can still find ten years-old game demos on well known hosting gaming web-sites, but the very day L4D was released Valve told themselves: «Alright, it should have been enough now? Those who have a life and didn't know of the demo's existence or didn't feel in a hurry to try it now are going to suck it down.» The very goal of a demo, when well done (because there are very small and basically useless demos out there) is to provide the gamer with enough meat to make sure if he or she, or they won't waste money on the full product. More importantly that there should be no "deadline" on a demo before it gets entirely wiped out off the face of the Internet, I think Valve learned a lesson for L4D2's demo, at least I'm crossing my fingers.
I for one will try it eventually, maybe. I'm not very interested by L4D2, but I'll try it with an objective mind, the best I can. If I don't like the demo I won't buy it, bargain or not. And if the demo "isn't good enough", too bad for Valve, my job isn't to make "good demos", it's to try them and make up my mind. I must say however that, so far the general consensus on L4D2 seems positive, I'm not ignoring that blindly either. If I do eventually buy it I will wait for its price to be considerably lowered since I really feel abandoned by Valve for the original, it will be my silenced unnoticed and unaffecting way to give them a message about it, a message that will go by unheard of by a mere Mr. Joe everyone who keeps his integrity alive, so instead of posting useless ranting posts on their forums I'll speak with my wallet.