Going way back, Star Frontiers had a fair number of modules too. Pretty good ones as I recall.
But, honestly, do we need yet another campaign sourcebook about FR? Come on, between OOP and current releases, you could fill a reasonable sized library with FR sourcebooks. Since sourcebooks aren't really all that system dependent, I don't know what the beef is.
Even if WOTC wasn't publishing lots of modules (and I'm glad that they are), they probably still wouldn't be rehashing the same tired old Realms crap that has been trotted out for the past couple of decades.
At least Eberron hasn't been done to death. Give it time and it will be.
All I know is, I am totally loving this new "Campaign in a Box" trend in the game. Running the World's Largest Dungeon has been the first time I've had a campaign not fizzle out after ten or so levels in I can't remember how long. Next week the characters who have advanced together from 1st level will take on the Tarrasque. Now THAT'S cool.
Next up to bat is the STAP. Given how much fun I've had DMing in the past couple of years, I have to say that I'm unlikely to create another adventure for a very, very long time.