Definitely YMMV. Tried to buy 3D version with lunchbox today, and the cashier nor manager would give it away. The manager offered to sell the box for $5. I decided to just buy the movie and will try go back to the store tomorrow with the ad and the receipt.
I use the hybrids in all my Wii-motes, and they hold their charge well, even after sitting around for months at a time.
There was a previous CAG deal on these during Jan-Mar of this year. It was $5 AC/AR for 6 AA, 2 AAA and a charger.
Did some trading in today, Here's what I was able to pull off:
(Includes 50% bonus)
Bust a Move PSP - $21
DDRU - $30
DOA X2 - $34
On Friday, I was able to trade in the following Wii games (including 50%):
Super Paper Mario - $45
Rayman - $38
Wii Play (yes!) - $15