With the money he spent on guns, ammo, sending stuff in to NBC, he could of gotten a hooker. Gottne laid, and been okay (possibly)
Problem is with society, where we are a "f u, it's all about me" attitude, just look at some of these myspace pages, selfish and egostical. Unfortunately, you will see a lot more Cho's in the future, people who fell "wronged" or "victimized" by this type of attitude, unless Am. society can look at itself and see that this type of attitude is wrong.
But, at the same time, if you see somebody who is weird, just leave he/she alone. Just let them be.
Cho was unfortunately one of those dudes who couldn't take being teased or rejected. But, that is life, and he couldn't deal or didn't have the coping skills to deal with life. He should have just turn the gun on himself.