Geoff,
Stopped at Ted's Interstate Hobbies on the way home Sunday, and noticed he has an LA 25 in the showcase, and at a very reasonable price!
I asked about the LA 46, and he said OS has discontinued the 46, and showed me the latest Great Plains distributer catalog. GP now lists only the LA 25 (in natural aluminum finish), but no LA 46 in blue, or natural finish. I knew they had dropped the LA 40, but this is the first I've heard about the LA 46.
Maybe it's a good thing you have a couple tucked away.
Bill