The majority of those have come from Victoria, New South Wales and New Zealand.
Amid the grumblings from various Australian points, including players and the Australian Cricketers Association, test skipper Steve Smith has given it an endorsement.
Smith hit 67 for New South Wales against South Australia in their Sheffield Shield day-night game in Adelaide yesterday, which featured pink balls.
"The wicket held together quite well and better than the abrasive surface against New Zealand in Canberra (last week), so that is a good sign. The seam was harder to see but I thought it played quite well," Smith said.
He also cited the increased ticket sales for the test and noted 1000 turned up for yesterday's play in Adelaide, "which is the most I have seen in a long time. That's the start, and I am sure test cricket will be no different," he added.
The carry, bounce and visibility of the pink ball was given an endorsement by both players and spectators yesterday.
"We have always said that a day/night test will make this form of the game more accessible for members and fans," Bradshaw said.
"So far, strong ticket sales are reflecting this and we expect some fantastic crowds at Adelaide Oval across the five days."