COTD is currently having 25% off its EOFY items, which include the mid 2013 MBA, Dyson DC39 Allergy, plus a great range of other items.
I believe these are the cheapest prices I have ever seen for these items. In addition, you can stack further discounts if you have coupons from previous deals such as this one
EDIT
It looks like the MBA quickly sold out..
Other worthy items maybe:
Dyson DC39 Allergy Ball Barrel Vacuum Cleaner $447.62 +PH
https://www.catchoftheday.com.au/event/39672/product/dyson-d…
Dyson Air Multiplier 30cm Table Fan - Silver/Iron $158.57 +PH
https://www.catchoftheday.com.au/event/39672/product/dyson-a…
Dyson DC23 Motorhead Wrap Barrel Vacuum Cleaner $539.72 + PH
https://www.catchoftheday.com.au/event/39672/product/dyson-d…
Plus many deals, For example:
Logitech G600 MMO Gaming Mouse, turned out FREE for me with the previous coupon
https://www.catchoftheday.com.au/event/39672/product/logitec…
Just to clarify, the discount is applied on the checkout page AFTER you add the item to your cart.
Good luck, items are disappearing fast!
Thanks, OP. Just bought the MBA. Good bargain!