Another reason to fix: perception.  installing to the root looks like a
hack.  Installing to the proper place* looks professional.  

As for it being hard to type, either add it to PATH or put a .bat file
in the path.  I think vista even supports some sort of symlink, so that
might be best.

As for easy_install.exe and others breaking when they hit a space, They
should be fixed too.  avoiding fixing them means people who try to force
the installer to do the right thing end up with a headache, which is evil.

* proper place isn't always "C:\Program Files" - the installer builder
should have an option to determine what it should be.  The environment
var %ProgramFiles% holds the correct path.  There is an API call too.