Myer has sale of the irobot Roomba RRP$1499 down to $1199 (not sure if for weekend only).
Can price match at Harvey Norman with one AMEX card, bringing it down to $1099 (or less if you have many Amex cards)
Harvey Norman currently have a promotion with the Roomba that you get a $150 Harvey Norman gift voucher also but may be dependant on your sales person whether you get that with price matching
Using a Rooma is like letting Stevie Wonder loose in a dodgem car on an American Ninja obstacle course. The first page of the 980 on Amazon uses the word "stuck" 21 times!