Have you ever been? How often do you go? Will you be going this year? Did you go as a member of the public or manufacturer/industry? Going for the first time this year, hopefully I get to see some cool things. http://www.cesweb.org/
las vegas i think you are thinking of photokina http://www.photokina.com/en/photokina/home/index.php that is more imaging and photography focused, ces is more broad electronics
It used to travel, I can remember attending these about 15 years ago in Vancouver and we know it as Comdex. It was a geekfest but had a lot of fun attending them and there were always some hot women manning the sales booths.
I went two years ago because I got free passes from an internship thing. How much is it to get in now?
I'm not going but I am very excited to see what comes in terms of TV technology. With Sharp's 80" and 90" LED tvs being so cheap (relatively) it's exciting to see what's coming next. I also need a new phone sooner rather than later so I'm hoping the Galaxy S4 or another Android flagship phone is announced.
Ultra HD - 4K televisions, unfortunately there is not too much content that can cater to such a beast.