Hi all. I am about to purchase a 2012 15" MacBook Pro and would like to get a 512GB SSD for it. Currently in my 17" I have a Crucial M4 and so far it has been great. From what I've read, though, I could get a lot more speed and reliability from a Samsung drive. Thing is, I could get another M4 for around $350, I actually bought mine for $318. That meant that I paid $0.62 per gigabyte. A Samsung 840 Pro 512GB is, at the cheapest, $566. If I bought that one, it would be $1.10 per gigabyte. The next one I saw was over $700. My question is do you guys think it's worth the extra $200-$250 or more to get the Samsung drive? That's a steep increase in price when I'm only paying $350 to begin with.