Note that 100W is the PEAK power. The average power of the laser will be much less than 100W.
So, while Blu-Ray is sufficient for most of us, it would be nice to see an uncompressed 1:1 format, or at least a far less compressed format. An hour of uncompressed 1080p video can take up around 500GB. So what we see on Blu Ray is 20:1 compression, at best. Hopefully such a "videophile format" won't be relegated to obscurity like the SACD format... That would be the "Holy Grail" of video formats, as far as home theater is concerned.
Yeah, there is the 4K video format (4096x2304), but unless you are sitting 5 feet from a 120" screen, you likely won't see the difference.