First off, I'm loving this 92 turbo!

Anyways, onto the problem: Completely ramdonly, I'm not able to turn the key from Off to any other position when I go to start the car. I can insert it fine, and it sounds like its in okay, but it just won't turn. When it does it (because it doesn't happen 100% of the time), it will take 1 or 2 tries before I can turn it. Other times (like today), I spent a good 5 minutes trying to get it to turn. All I've got on me right now is WD40, and I'm apprehensive about spraying it before I ask.
Could it be the key is getting really worn out? I asked at the dealership about getting a new one, and they said they couldn't get the key code, but could maybe get it from Japan. Any chance another dealership would have better luck? Or is there someone else I can go to? This key is definitely not an original, and I don't want a copy of a worn out key.
Thanks for any suggestions. I haven't pulled the steering molding off yet, but I'm willing to if I need to get in there.