Tymtravler, it would be nice if you did a bit of research before stating stuff like that as fact.
With BR, sunglasses are
WAY better than nothing. Dilation of the pupils is minimal and in my research I have found they cut down on BR by 88% to 97%. My research with other wavelengths suggests that sunglasses here do not block enough (IIRC they blocked between about 60% and 80%) to compensate for pupil dilation. However, they are still great for blu-ray.
I would recommend anyone who owns a powerful blu-ray to purchase these goggles, but until you receive them, to use sunglasses.
Your eyes should be valuable enough to invest in the goggles being sold here, but not protecting them until you have these would be foolish - it would be like someone not wearing a crappy helmet when cycling because their good helmet was coming in the mail soon.
Goggles are superior for many reasons, such as less pupil dilation, better blockage, more reliable dye quality, protection from side shots, ability to wear glasses under and probably a lot more, but sunglasses are in no way worse than nothing.
Seb