The 980X came out March 16th, 2010 @ $999. The only other alternative anywhere near that level of performance was the i7 970, of which we had to wait until July 19th, 2010 for, and still fork over $885+ to obtain.
A full year and a half later the 980X is still basically the fastest desktop CPU money can buy, and won't have a true replacement until s2011 arrives.
Really, your argument about the waste of EE CPUs only works if there is an alternative CPU that can do 95+% of the EE CPU can do, and at a fraction of the cost, say i7 920 vs. i7 965 Extreme Edition. It wasn't until the i7 970's significant price drop that you could say the same about the 980X, but by then you'd have missed out on the better part of a year computing with the fastest desktop CPU in the world.