Good choice though, Noctua makes excellent coolers. I would say it's not worth an extra $25 for a couple degrees difference, no. Also bear in mind the dimensions of that cooler. The NH-C14 is actually comparable according to frostytech and a bit cheaper; the U14S is great and slimmer (and costs even less), having only one fan. The U14S is probably the best value, and it's the one I currently own. You really can't go wrong, just remember the D14/D15 is very big.