Steve Jobs has already called Blu Ray an outright failure wrt content delivery so I doubt he is in any rush to incorporate the technology into the Mac product lines other than for HD storage/media etc. Although that is a legitimate reason for bringing in the technology, and we will no doubt see it at some point, it's not like Blu Ray is the be-all and end-all and some people mistakenly believe.
You'e right, its not the be-all and end-all, it is just a standard. Apple learned its lesson from SCSI, standard parts on PC's. Blu-ray is the standard now, does Apple with all of it's video production professionals want to be the last to integrate it? Oh yeah, they already are.