Unbelievable, but funny as the f-bomb Dave dropped!
It's 100% correct in the fact that someone who has just paid 5x the amount for a memory card WILL hear the difference because they have told themselves that it is better, much like anything!
There are other companies that used to be innovative that are now about making money (Apple etc), but people still trust the original brand name and will buy it and believe the lies being told, some say it's wrong, some say fair play if you can get away with it, just be prepared to take the consequences when it comes, if, that is, they are at all bothered by them.
Short but funny rant!