i think one of the fundamental problems with "art games" is that they want to be more like a gallery installation and less like chess.*
the problem with the general over-the-top reaction to the ebert thing is that the engine behind a lot of it is this:
1) cultural icon declares games worthwhile
2)

3) respect!
otherwise why care what ebert, who everyone agrees is not really into the whole games thing on any level, thinks?
* it is entirely possible that i am "missing the point" of such exercises. such is life.