Yeah, but I noticed something he mentioned.
To me that means most of the items that would have been desirable aren't anymore, at least not for a really decent amount. Games really need to be complete to have significant value, mostly because most people would have thrown out the boxes. Plus the description for some of the games doesn't make me think everything is in perfect shape. Several of those titles I've had complete but sold them for about $5 each, I don't really see much being more valuable than that in less than perfect shape.
As for inserts and manuals being valuable, it depends on the game. They'll still be worth something to people looking to complete copies they already have, but for the most part most people won't pay much for them. The people willing to pay more money would do so for something already complete so they won't have to do any more work. I actually just got a pile of spare PC manuals and inserts last week from a thrift store about to throw them out, I paid $0.50 for the whole pile. I hesitated to even pay that much but I didn't want to see them trashed, I'm hoping they'll be useful eventually.