Re: AA rechargeable batteries were always good value
"especially at Christmas, there is no real comparison between a 2800mAh rechargeable and a cheap multipack of Duracells from the discount shop."
Agreed, but possibly not in the way you intended. I have lots of kids, and I had lots of rechargeable batteries. The problem was getting them to keep apart the newly charged and the ones that have lost charge by not having been charged for a few weeks or having been drained by heavy use. On Christmas afternoon the toy running on 3 fresh cells and one spent one doesn't perform to well, which is frustrating after having religiously recharged all the NiMh in the run up to Christmas to try to avid their inherent self discharge problems.
Now I just buy big boxes of disposable batteries, and everyone is happy. Even me.