I really wish I knew. It kinda annoys me too.
Okay, to be fair, they are two seperately operated companies and sell to different markets, but it does get kind of frustrating especially with stuff like the Star Wars kits, which we know would sell well in America (at least I'd probably buy some) just don't get marketed here. Some of it can't even be special ordered except via the internet. Maybe our German brethern feel the same about Monogram kits they can't get in Europe.
my favorite headache/current project:
1/48 Panda F-35
"I love the fact that dumb people don't know who they are. I hope I'm not one of them"
-Scott Adams