My friend-who-knows-a-lot-about-TVs told me not to worry about calibration. He asked me if I was really interested in accuracy, or if I wanted the colors to "pop" off the screen and be cool and fun. In other words, am I a videophile, or do I just want to enjoy my TV. In his opinion, if you really want to go down that videophile rabbit hole and get calibration, thats fine, but the end result will be a more "neutral" color presentation which yes will be more accurate, but maybe not as fun.
yes, the parallels to audiophilia are not lost on me. I'll just save my money and stick with the Cinema factory setting.