Be aware that with Platinum and Iridium there are two types offered by NGK. OEM (long life) and fine wire (shorter life) higher performing. In the case of the EIX, those are generally the fine wire 50k miles versions. Surprisingly the Platinum listed above for this application is also only 50k mile life so a toss up between the two. The longer life iridium for this Camary is the NGK 6741 IFR6E11, rated for 100k miles.
For most oem applications, NGK makes a thicker electrode version of platinum and iridium that are rated for 80k to 120k use.
I got caught on this where the EIX were less expensive than the oem platinum for my Tundra...I installed them, then out of curiosity called their tech support and he said the EIX were 50k plugs and the oem platinum were rated 100k because of the thicker electrode tip (and why oem plugs cost more for the thicker material). He said if I wanted a longer life Iridium, he gave me the iridium equivalent long life oem type. I've gone back to using oem Platinum and change them around 80k miles. I'm just shy of 400k right now... I prefer the longer life versions, because I have never seen a big difference with the supposed higher performing plugs, and simply want the longest life so I don't have to get back in to change them...I'm lazy (and all my cars are V8s).