Not sure if it is a superb deal so please forgive me if it isn't.I did a quick search online, the cheapest price for the mixer was $309 from kitchen appliances and the blender was $249. Not a bad deal if you happen to need both of them in the kitchen.
Staff member told me it was a leftover deal from Xmas, so it is probably store-specific.
There is an option to attach a meat processor(?) onto, turning it into a multi-function mixer.
We got the mixer during the COTD 20% off sale 2 weeks ago, came down to ~$230 (Club Membership required but can be cancelled straight away without being charged), so if you can wait there could be a better deal around the corner.
Speaking of the attachments, we got the pasta maker attachments (MX0100 and MX0200) for AUD$189 from Auckland. The cheapest place I can find in Australia so far is Sunbeam Outlet @ Brandsmart, Nunawading VIC (MX0100 $120 and MX0200 for $189.99). I asked Sunbeam Australia about the meat grinder on their facebook page and apparently it will be released early this year, so keep an eye out for that.