I right now have a PNY GTX 780ti on delivery but I've been considering refusing delivery on it and ordering the EVGA GTX 780ti SC (non-ACX version). I bought the PNY GTX 780ti for $680, and the EVGA GTX 780ti SC is currently $700 at the online store I bought the PNY card. I prefer the GTX 780ti reference cooler over 3rd party coolers and the EVGA one is the fastest one that uses the reference cooler. Is it worth the $20 extra to buy a factory-overclocked GTX 780ti with a reference cooler over the reference clocked version and refuse delivery on a reference clocked GTX 780ti?