Many thanks for the responses folks...
I was just wondering whether it's worth buying one as a kind of 'standby'.
I fly with a handheld scanner just in case of radio failure (I know I can't broadcast but at least I can hear ATC).
I rely on my trusty Poljot to tell me the time, and Mrs Dakar would go ape if I ever contemplated buying a Breitling! She went ape enough when I bought my excellent quality replica Navitimer a couple of years back.
Ta much all.