I know Mark.. I 'think' that same thing all the time... but I still haven't convinced myself to try the Tropical Punch that turned out to have the blue & red coloring in it (didn't realize until I got it home.) I have used one with caramel color though 
Call me crazy.. But I sucked down a pack and a half a day for 20 years!! With how many toxic chemical compounds!! I don't think "red#40 or blue#1" can come close!! We all inhaled this nasty stuff for years. It might be a little premadona-ish to eliminate a great flavor because it has a color in it.. (just my 2 cents)