i appear to be in the minority here (although I didn't read the last few posts) but I do believe it is worth the money. Everything I've heard about the controller ($150 by itself) is that is the best controller made to date, period. It is supposed to be the real deal if he is into gaming. The SSD will run games smoother and install them faster than the normal drive. 1 TB is going to be necessary if he plays more than 6-7 games. Every game has to be installed to the hard drive to be played and unless he keeps up with deleting games he doesn't play/have he will run out of room. I know a lot of people that had that problem on the 500 GB verison. Also keep in mind, and I know you're into technology so you probably know, but ~200 GB will be taken already out of the box. I could be a little off on that estimate but it's a high figure if I'm wrong.
So yes, it is quite a bit more but I do see the value for the price difference. If he will use all the benefits that it provides it's a no brainer, but not everyone will find that it's necessary for them.