This deal makes most sense for people who have bought or were given a Dick Smith gift card sold at Woolies or Big W, as these can now be exchanged to Wish Gift Cards (see comment below).
You can use these cards at BigW, who currently have a special on iPad minis where you can get a 5 in 1 bundle pack for free too.
The only iPad mini on sale though is the iPad mini 2 Wi-Fi 16GB for $345, which on its own is not the best price out there as Officeworks and Harvey Norman have priced the same model at $332. However, you're also getting a 5 in 1 accessory kit with it, making up for the price difference and more... Big W claims that it's worth $70, but most likely the real value of it is more like $30-$40.
Fact is, Big W / Woolies would give you the chance to redeem your gift card whereas currently you wouldn't be able to do that at Officeworks, HN, The Good Guys, JB HiFi, etc.
So basically this makes it a very good deal for those stuck with an otherwise useless Dickies gift card. Plus, unlike with Kogan's offer to exchange DSE vouchers for up to $25 in credit, this way you're getting the full value of it as well.
Also, the reason I picked out the iPad is that now you still have the opportunity to buy something with your voucher that you would have from DSE originally (versus receiving an exchanged Wish Gift Card and then ending up buying food, wine or nappies, for example, from the list of stores where they can be used).