I think the pure command line version of the System profiler is gone.
What happens now (or is
supposed to happen) is that /usr/sbin/AppleSystemProfiler (which is just an
osascript) should launch the regular "Apple System Profiler" OS X app, get all the info from it, quit the app and then display the info in the terminal. Type
more /usr/sbin/AppleSystemProfiler
at the command line to see its innards. It's working fine for me.
I don't have Classic installed at all, so it probably works correctly for me because there is only one Apple System Profiler to launch. Read
the last post in this thread. Moving/renaming/deleting the classic app should work (sounds like it did for you, level9) but it seems like there should be a better way, doesn't it? Does anybody know how to change where the script runner looks by default?
Anyway, it does look like the pure command line version is gone. Which is strange because now you can't use it at all in single user mode, right? Time to go check...