Just to show that we can all be proved wrong, I must stand corrected. In my earlier review, I said that the Contour USB didn't have the function of lighting up where you insert the strips. Turns out that it does, and I'd just been doing it wrong. I had assumed that it would turn on automatically. What you need to do, whilst the meter is turned off, is press once, wait a second, then press again. Two quick presses will turn the light back off again.
So that's another feature! Thanks for those who pointed out what I was doing wrong. Always glad to learn something new.