my 5Dc shutter just broke last fall and i had to send it in for repair. the shutter is rated for either 100,000 or 150,000 actuations (cant remember which). canon told me i had 186,000 shutter actuations on my 5D when it broke.
anyway, i got a new shutter installed, a new glass filter put in front of the chip (old one was persistently dirty despite professional cleanings) and i had them clean out the viewfinder. all of that cost me 200.00 US and i got it back in a matter of days. it performed like it was new out of the box. i was extremely pleased.
so i would say don't worry about the shutter count. if you like the way the body performs and how the images look you should keep it. if there is a problem with the shutter in the near future it is a very simple and affordable fix.