This is another "how long is a piece of string" type vaguely CGA-related question thread, I'm afraid.
We had supplied to us approx 3 years ago a wireless remote pin-pad for a garage door. This is a specific item that the manufacturer makes, which is designed to be sited outside, has a weatherproof flap, etc, etc.
Now our one has a faulty digit, sometimes when you press it, it works, sometimes it doesn't. I'm sure that the actual mechanism is one of those simple rubber-membrane "calculator key" type things.
Having rung the company that supplied it, they claimed that since we'd used that digit twice in our PIN, we'd worn that number out "through overuse". Sounds like bollocks to me!
I'd be interested in a quick straw-poll over what people think should be a "reasonable" lifetime for a product like this - solely designed to be used as a pin-pad on the outside of a building to open a door.