I think the mechanical noise through the mic stand/cables and the use of shockmounts is a bit overrated here on ts. In a typical rock show it would take one hell of a jar to the stand to hear it in the recording. Test it out during an opener some night. Bump your stand, hit your stand, shake your cables, etc... You won't hear much.
Now, in chamber/orchestra recording I could see this issue being more of a problem. If you can hear a pin drop in the venue, you will be able to hear vibrations running through the stand or cable...