Another problem this generation is that people just LOVE gameplay padding, just look at how much people love "Achievements", or games like WoW, The unlockables in CoD4 and R6V2, Assassin's Creed an No More Heroes, we just have to have "open worlds" and unlockables in multiplayer now, no matter how badly executed they are.
btw Khell it's not Crysis' fault that you went prone through the whole game, it's yours. If you didn't want to do that, then you didn't have to, I mean come on everywhere I went there were vehicles and if those weren't around I used the speed boost - if enemies were far off I sniped them (while using "strength" to be more accurate, problem was they could see me since I glow red), etc. etc. - why didn't you use anything else? It seems like Crysis was different for everyone, and I'm the only one who enjoyed it.
Hell Assassin's Creed would be a better example, for every assassination there is a zillion hours of running to a sidequest, pressing "L1" - and then doing another sidequest, or seeing an informant, who would give you a flag collection quest...