[Max Lobovsky]

Franlly, Doom 3 is looking to be a disappointment. Its technologies were groundbreaking years ago (when it was supposed to be released) and from the latest trailer, the single player action looks pretty lame (hold the mouse button down on some big scary targets). But the real reason Doom 3 won't be able to compete with HL2 is the smaller user base that it will have.

The only reason HL was so succesful was all the great mods that were available for it. Valve realized this and is making sure even greater things will be avaible to modders. Buy HL2 and you get a bunch of free mods that give you many games fro the price of one. The problem is, it takes a lot of users to have a lot of mods. HL2 will provide this simply by the hordes and hordes (millions) of HL players that will (or have already) buy/bought it.