I am torn between really liking the idea of a CE box and thinking they’re too much. I think the “too much” view comes from the grumpy old fart, GOF, in me, the one who says, ‘When I was young, we had to walk 10 miles to school, in 10 feet* of snow, uphill both ways.”
The GOF in me remembers my childhood Christmases, which I loved, when pjs, any books, special mugs, and whatever corresponding ‘70s technology equates to a dvd, would all have been actual presents to open on Christmas Day. So GOF wonders why “kids today” get or need so much stuff! 
The other part of me, let’s call her “Mary Xmas”, really gets into the excitement that my young niece is experiencing right now. It’s not just vicarious enjoyment. We do crafts together, listening to Christmas music, watch Arthur Christmas, etc., and I love it all as much as she does. Mary Xmas also can’t stop eyeing things in the stores, wondering if niece would like them, when all presents have already been bought. CE boxes would be another fun thing to do, but her mum is already doing so much for the holidays and I usually don’t stay over on Christmas Eve so there would be no point in me doing one. I don’t know what Mary Xmas is going to do when niece grows up. 
*It sounds more extreme in imperial, rather than metric.