There's not a whole lot in Whyalla, it's a place that's seen better days but as long as BHP (now OneSteel) is in town there's no danger of it becoming a ghost town.
It's dry, it's dusty, part of it is covered in red dust from the steelworks but it's sunny and has all the mod cons (Pizza Hut, Blockbuster, Harvey Norman etc.). I've been here a number of times to visit relatives. My parents met in Whyalla during the steel and shipbuilding boomtime in the 70's, so without Whyalla I wouldn't be here.
There's a few tourist things to do, which I've featured in my travel tips.