Should I drop a 10 year friendship?

I have had this friend now for 10 years he has always liked video games. But we are now 20 years old and his obsession has only increased. He has no job, lives with his parents, and all he does (literally) is play a single video game, eat and sleep. All week long for the past 2 years. I have tried to encourage him to make something of himself... get into college anything, even if it just means getting a minimum wage job. Now, all of that wouldn't be cause for dropping our friendship. but now, in addition to all of that, his obsession with video games has caused to him to completely abandon our friendship. we used to hang out every weekend. Now, its once every few months. STILL, I would enjoy our friendship; however, now, he won't even stop playing his game enough to talk on IM. I would be fine with any form of communication but he hates talking on phones and texting. I will try talking to him. but he ignores it. and the only reason i know he is ignoring the messages opposed to just not noticing them, is because he responds very promptly when i say "G'night" or "Bye". all I get from this friendship is the stress of trying to get him to do something with himself. and he usually just gives me grief for trying to get him to do something with himself. I just hate the idea of giving up such a long friendship over a dumb game. what do you guys think?