This is because the new fad in online market technology is being implemented. It's called "dynamic marketing" or at least that's what the users are calling it. You see, in the information age, when you browse a website they are following you. No, I'm not a conspiracy theorist, lol. What I mean is, there are literally hundreds of pieces of information that they can find out about you just by you browsing their website.
So what? well, it means that when you log into my website I can see that you are: Male, 56 Years old, running a flashy R30k+ laptop. Oh! And check it out!! He lives in Bishopscourt!
Again, so what? This means that they can individually target you based on their perceived profile of you. So, I see James lives in an upmarket area and is running a high end device, lets manipulate the website to show him a high price while Joe from (Insert worse off neighbourhood without offending anyone here) gets to see the same exact product with lower shipping costs and at half the retail value when he logs in with his old Samsung galaxy S3 mini from 2012.
Unfortunately this is the new trend. Wish.com is an example of a company that currently implements this strategy.
Be a smart shopper.
@Spyro - thanks for this - its most interesting
Is there a way to turn it all off so the website doesnt see all this info?