Ali Express does the same thing now, with different sellers offering apparently different prices but compensating with shipping costs. Which is reasonable; what's not so great is that you get listings that advertise "Free Shipping" but aren't, and that often the picture you see is of item A but the price shown is for a lesser item B in the same listing.
> often the picture you see is of item A but the price shown is for a lesser item B in the same listing
Many large eBay sellers do this. For example, they may offer phone cases for £5 each and a screen cleaning kit for £1, all as different variants of the same listing, so that their listing appears alongside other £1 items in a search for phone cases. It is technically a violation of eBay's listing policy,[1] but is widespread as the rule is not enforced in practice.