Doncaster would not have had that many Scorns or Nitro before the catalogue sale. Most Big W's around me had put clearance prices on TLK Voyagers ages ago and got rid of them - but never this low!
So expect your store to restock - like with the Seaspray, Cosmos, Octane and Blitzwing a few months ago. They might not be in the regular toy aisle either if the deep discount Titans Returns toys are anything to go by.
I take back my early speculation. On the Big W website Voyagers are currently $10 and Deluxes are $20. So the catalogue price being "half-price" and the deluxes indeed being $5 more than voyagers would be a logical conclusion. Order online for lucky dip "fun".
Voyagers
Deluxes