It is great fun to play. I'm 30, single, and usually play it during the week after work and working out. I never go out during the work week, and rarely watch TV, so I can find time to use it.
Two things though. More than likely it will break on you. I have treated mine like Holy gold, and it just broke, after a year. But, the games are great, and the graphics are superb. I play on a Samsung Syncmaster computer monitor with 3000:1 contrast ratio and a 2ms response time. It looks better than any HDTV you could buy, and I got it for $300. I swear on some games it looks like your are actually there in real life.
So if you don't want to spend thousands on an HDTV, get that computer monitor. Just make sure it is 3000:1 contrast ration and at least 6ms response time. You won't be dissapointed.