My 950 doesn't work anymore which is what prompted the other purchase. As for loyalty I don't think there is any from any manufacturer....rebates, free shipping, kickbacks and discounts of any type are just sales and marketing to get you or keep you as a customer.....as it should be. My dog is loyal, companies aren't, neither are customers unless the price is right.
I also notice your Samsung lasted 15 years, much better than my $900 processor which only went 5 years. The 770 is going strong and I feel like it should be around for many, many years. The 950 was always slightly sketchy in it's operation but if it worked I would still be using it instead of moving to the 990.