sbiddle:
I only buy Varta if I'm after alkaline batteries. I'd never buy Energizer with their heavily inflated prices.
Bunnings also sell Arlec batteries for a similar price as Varta. I've picked these up a couple of times over the years when they had no Varta batteries in stock, and have had two occasions where they have leaked, and while it's only anecdotal, I don't think they last as long.
The price is OK if you buy them from 1 Day. 30 pack for $25.