I noticed this too, but it doesn't really bother me.
some bonusus they offer are pretty sweet, like the early Killzone 2 demo, even if the demo won't install for whatever reason for me, even after downloading it twice which took about 2 weeks on my internet.
And some are just laughable, like the weapon for COD: WAW and all the songs for GH: World Tour
But in others, like Fable 2 and Far Cry 2, where I get in game offline content, thats pretty sweet, considering I can't play multiplayer in most games