GameRager: Unreal died when they decided to make it MP only.......my two cents.
MobiusArcher: I didn't have the internet connection for it at the time, so I only played UT2004 singleplayer. I still enjoyed the heck out of it. Those bots were fun to play against, and the game supported voice commands for bots on your own team. I actually had way more fun with that game than I did with Half-Life. Unreal Championship 2 on the XBOX was also really fun for me singleplayer, but not as much fun as 2004.
IMO, a MP only game with bot "sp" mode isn't the same thing. :\
I loved Unreal and even U2. I didn't like it when that series and Quake went MP only. I felt "betrayed" in a sense.
Plus yeah I admit sometimes playing against bots is fun, but I like to play though a series of maps with some semblance of storyline when I play SP.