Unfortunately, I can't answer this question either. When I decided to buy the Ankarsrum, I also asked myself why it was offered at such different prices, as I couldn't find anything conclusive in the comparison that would have explained the difference.
It could be that the most trendy colour at the moment is offered at a higher price, or perhaps it could be how many were taken into stock and when. But purely in terms of the machine, I think that they are all equipped in the same way.
In any case, I'm super happy with it!