well people are going to have opinions no matter what so you knew those types of comments were bound to happen. sure this is an hardware forum but in this forum most people try to see how much bang for buck they can get. if honestly asked most people would never spend that kind of money for such a small increase in performance. you have to accept that people will think you are crazy for spending that kind of money for very little in return.
You can't explain your way out of being obvious, but you could just apologize and accept it.
This is NOT about money, get it??? (stating the obvious is just rude...........Geez, you spent how much.............son-of-a-bitch, man; you could have bought eleventy-seven of these............damn.)
Just leave the man to his business, at least he saw it coming.