Because 60 is not 30C? Why overheat the rest of components in idle for no reason, other then "quieter" operation.. Just saying. 🙂 EDIT: not trying to start a "fight" argument here, enjoy your gpu!

Overheat? 38c no fan sounds good to me. Even 60c is not 'overheat' but I'm sure you know that.

Mine idles at 36-38C and reaches about 60 during normal gameplay (running SLI with no custom profile). If I'm playing something really taxing it can get up to 70C (Monster Hunter benchmark).

60c+ idle was the 'norm' with many graphics cards not so long back (8800 series, HD4000, etc). Some recent cards have been running AT LOAD temps for months on end (AMD mining). So 60c is nothing for GPUs. Still, you do have that option to turn it into a 'regular card' with fans on all the time if it bothers you, but I doubt it will affect anything in terms of cards lifespan. It will just suck in a little more dust being on all the time.