If you like the computer keep it. I highly doubt in you daly usage you will have a checker board pattern up at full brightness for 20 minutes. Did you get applecare? If so just sit back and you have 3 years of computer enjoyment. I get apple care with every laptop I ever owned.
Good point.
Plus I will probably sell it after a year anyways and get the newest Broadwell's.
In daily use I have noticed no IR whatsoever - and everything else about the laptop is perfect.