Yeah, I am with you on that one, and for that matter Google books also, but I guess Google made the ROM so they "baked-in" a few of their own apps in there.
For all your other needs, there is the Market at your disposal... use it!
The Evo (and most other phones with built-in skins) include a number of extra proprietary programs to enhance the user experience. If that is what you want/need, then you should not get a Nexus but rather any of the other high end phones such as the Evo, Epic or the Evo 3D when it arrives.