This goes out to Milton (mostly) and all of the other young, internet-savvy folks on this forum. Before I begin, I'm not trying to insult anyone here. I'm just trying to show you the logic that you're missing.
For a guy who researches bands to interview them for the ProgPower program, your ignorance on this subject astounds me. One quick look into interviews or online biographies of Dream Theater will tell you that King Crimson was a big influence on them. One quick look on Wikipedia will tell you that the Crimson Projeckt consists of 3/4 of the last lineup of King Crimson (some members going back about 30 years), thus negating the "cover band" tag. Another look into history will tell you that other bands with a large, dedicated fanbase have brought out the bands that have influenced them as opening acts. There's this band that comes to mind called Metallica, for example, who has had more than one of their influences on the road with them: Diamond Head, Mercyful Fate, and Motorhead have all helped shape Metallica's sound, and they have all opened for this juggernaut of a band. Iron Maiden has Alice Cooper opening for them this summer. Ask any member of Iron Maiden who should really be the opening act, and I'll bet you that none of them will say it's them.
Dream Theater did a similar thing three years ago when they asked Zappa Plays Zappa to be their co-headliner for Progressive Nation. Portnoy's philosophy was that each band has its following, and though there are some similar characteristics between the two bands, their respective fans may not have seen those similarities themselves. Therefore, why not make an attempt to share audiences? Since Robert Fripp, the sole remaining original member of King Crimson, refuses to do anything with the band now, the next best thing is to take the rest of the lineup and get them out on the road. King Crimson has a very dedicated, albeit generally older, fanbase, and though the complete lineup would certainly draw an even greater audience, this incarnation is nothing to sneeze at.
Dream Theater already tried bringing a younger band with a growing following to attract the kiddies on their last U.S. tour. Why not go the opposite route for this tour? I don't always like the opening bands that they choose, but I can appreciate the fact that they take different avenues with each tour. Who knows? It could possibly be the reason that they've become a more popular live act over the years!
For those of you who are already dismissing this show just because you don't know the opening act, think about this: you are complaining from the very instrument that can show you whether or not you would actually like the band. The same websites that host songs from the infinitely obscure bands that we discover on a regular basis most likely host songs from a band with a 43-year history. Give them a listen, and I think you'll find that they have more than a bit in common with Dream Theater.
Stay metal. Never rust.
Albert