It would seem that they are quite a controversial retailer, looking under "Controversies" of the wikipedia link above.
I like them a lot more already
Ruslan Kogan then bet Terry Smart, the CEO of JB Hi-Fi A$1,000,000 that they would not stock Apple hardware by 14 March 2014. The deed for the bet is still available online, though it has not been accepted.
In March 2011, Kogan began giving away free HDMI cables to anyone who had bought a TV from JB Hi-Fi in 2011. This was, Kogan said, a bit to expose that "JB are trying to trick people into thinking they need a $200 cable after buying a FULL HD TV. This is simply not the case."
At the JB Hi-Fi Annual General Meeting in October 2011, a JB shareholder claimed consumers were "being screwed," when responding to the comment, the chairman and CEO of JB Hi-Fi acknowledged the "challenging conditions" they face due to the cheaper prices online.
In October 2011, Kogan took out a full page ad in Australia's biggest newspaper calling for JB Hi-Fi to change their slogan, "Always Cheapest Prices." JB Hi-Fi did not respond to the challenge.