Yeah, it's too bad more people don't/didn't know more about the Anthology. It's a great set, and I must say I knew absolutely nothing about it until I saw 1 copy of it on the shelf at a local music store. I said to the clerk 'what is that?' When I saw how much stuff was on it (I especially enjoyed having the missing ESB music), I bought it immediately, even though that was a HUGE sum of money for me at the time.
I don't think I ever saw it in a store after that either. Did Lucasfilm not promote it properly, or did I somehow not get the message? :p