I just tried the link from knight_mare's post, and it does come up with the $89.99 price. Then just put it in the cart and use coupon BIG35, choose pick up and put in my local store. This looks to be a great deal and is a local buy. I doubt you can beat this price for a good quality battery.
When you pick it up make sure it says "Made in USA" on it. Made in China quality doesn't seem to be very good on batteries. I have not had good luck even with AA size chinese alkalines. It doesn't pay to cheap out on a battery. Plus, it is good to buy american if possible.