I couldn't disagree more with the thread thesis.
First of all, I wouldn't consider most movies, records or indeed PRACTICALLY ANYTHING you can stick your head into out there as art, simply for the fact that it's mostly crap. Luckily, there's the 1% per cent of records and movies and books and what have you that are indeed ART, simply for the fact that they do SOMETHING to YOU.
So to be fair, we have to direct our attention from all the crappy shooters, anally retarded flight sims and grind-based rpgs out there and to the rare games that get it right.
Secondly, your definition is just way too narrow. By your definition, music is NOT art. No characters there, are there? So let's just drop them, which leaves us with emotional resonance.
And nobody can argue that games, good games, DON'T trigger emotional resonance, and that said resonance can't be deep. The key is, as many have already put out, immersion - no other art form has that. I has the same goal as the depersonification you experience when you're watching a movie and identify with the characters. In games, you don't only identify - you ARE the character, and that's so much stronger. Let me give you a few examples.
Let's think of war games. Just take the Call of Duty series as an example - I guess you can't get more close to the horror of war without actually being subjected to it than in a well crafted war game like CoD. Remember that Stalingrad level in CoD 1? When I first played it, I could literally feel the horror a Russian soldier must have experienced in that situation, what with all the shell shock and all. (And the fact that you're still having fun doesn't take away anything of this, but that should be discussed elsewhere *making mental note for future reference*)
And I don't think we're even close to what kind of experience we can have in that field, you'll see. By the way, I've heard that CoD4 is of a similiar ilk in that nuclear explosion scene, but I haven't played it yet.
Or remember how you played Half-Life for the first time, particularly those of you who were there when it came out. Wasn't it freaking you out? Wasn't it unlike anything you had ever seen in movies, books or even games itself? And it was true experience, you could experience a world hanging out of its hinges.
Now tell me, where else do you get that? And isn't that ART? Isn't that DEEP?