I shoot with a Canon 1Ds2. It uses an electronic cable release - surprise surprise. The way it plugs in to the camera, it's forever coming loose and the cable itself gets angled backwards which can't be good for it - I reguarly find it doesn't work and it's because the plug has come loose.
The other day I picked up a digicam for my holiday (backup and fun) and it comes with a remote control. It works from 40 feet infront of the camera and 15 feet behind. How come my $10,000 camera can't do that - remotes have been around for years. Never to step on the cable release again when the camera is low - or dip it in mud or water. No cords to fail, no need to replace it or carry a spare as I do now, it would actually work most of the time. Guaranteed no vibration transmitted from the device to camera or problems of it swinging in the wind, or getting wrapped round the legs of the tripod or caught between the legs and the head, hell, the remotes a lot smaller and does more too. Get with the programme, Canon!