I noticed this special online yesterday. It looks to include free delivery if you are ordering online. Although it is says it is not available for pickup, I walked into my closest JB Hi-Fi store and confirmed that it scanned at $49.98 at the register, even though the price label was still $115.
Other Australian sites still seem to be selling this for $100+ and this is cheaper than Amazon UK's GBP40.
god I paid about that when it came out.