Thanks all for your feedback, I reckon I'll stick with my usual collection of blinkies and medium-bright LEDs, and let the hype just pass me by Lots of good light tips here for next winter.

Geonz - on your lightswitcheronner: if you have some inexpensive lights you could have a lot of fun boobytrapping one with say, some glue, or a short needle, or preferably something that makes a small explosion. Or starts an alarm ...

Or you could just remove the batteries. Trying to turn on something that won't turn on is BORING.