To everyone except Neo (nothing against you fella, enjoy your new machine).
If you paid by credit card for your notebook from MSI you can instigate a charge back with the credit card company as the notebook in question was mis-sold.
wayback machine will let you look at historic webpages on most of the MSI resellers sites.
https://archive.org/web/
Enter the url of the reseller you purchased from and it will provide with a selection of dates where they have archived that site. You can then click through the site to find your notebook and see if they advertised as having 'upgradable MXM gpu's' if it does go to your credit card company and advise them you were missold and provide a link to wayback machines archive.
If you are already involved in the trade-in program I highly recommend you hang fire and check the above. Which has best value to you, a full refund or a trade-in that costs more than an actual MXM upgrade?
Resellers will be pretty quick to claim this back from MSI.
Worst case solution, full refund. Best case, we hold MSI to their word and they provide the upgrade at costs comparable to previous MXM upgrades, like they have with Neo.
If anyone needs any assistance finding the historic advertising I am always willing to help, drop me an email at msimxmshame[at]gmail[.]com
I ask that you share the above information as widely as you can, if you see an MSI promo on a website where you can leave a comment, do so and point to this thread.
MSI HAS IGNORED IT'S OWN STATEMENTS, MSI HAS IGNORED US THEIR CUSTOMERS, THEY PUT PROFIT AHEAD OF US. TIME TO TAKE IT BACK.
Prepared statement for sharing:
MSI mis-sold the GT72/S and GT80/S claiming they had upgradable GPU/s. This has been demonstrated not to be the case. If you paid for your GT72/S or GT80/S with a credit card you can arrange a charge back with your credit card company. You will need to demonstrate that the reseller you used advertised the MXM upgradability. This is a relatively straightforwards procedure using the wayback machine -
https://archive.org/web/ all you need to do is enter the url or the reseller that you bought your GT from and then find the archive for the site closest to when you purchased your notebook, then click through to find your specific model and check if they advertised MXM upgradability. If you need any assistance finding this information feel free to get in touch: msimxmshame[at]gmail[.]com