I had my hands on a Gateway DL36 and played some Mame on it. It worked very nice especially having the VGA connector. I really liked the curved screen as well.
But it is really big and very heavy. Seems like it was over 150 lbs. In the right set up it would make for a nice monitor. I decided I did not want something that big and let it go to Craigslist.
If you have the room I'd say go for it.