HJiya!
Because WEG lost the license (and went bankrupt due to their parent company...a shoe import company, believe it or not!...).
I'm 100% serious.
WEG's "Star Wars" was sooo dang good that even Lucasfilm used it's RPG books/supplements as OFFICIAL CANNON! In fact, Lucasfilm sent Timothy Zhan a box of WEG SW stuff and was told "use the background and other stuff in these for your new novel series".
The WEG SW setting and system was
perfect for what it was portraying; fast action space fantasy opera. INSHO, it is, to this day, THE best Star Wars setting/system, hands down.
Then WotC got the license, and...well... yeah.
If WEG was resurrected and all their old SW stuff brought back into play, and new stuff written....I could see SW making a HUGE comeback in the RPG community. But that will never happen.
^_^
Paul L. Ming