the post conversion on thor was a disappointment. Most of the movie was in 2d anyway. You didn't even need to wear your glasses to see most of the movie clearly, and aside from a few shots during the frost giants battle at the beginning there was not much to see in 3d anyway. The only reason i saw it in 3d was because the 2d screening was sold out, and me and my family didn't want to wait around for 3 hours waiting for another 2d showing or drive around looking for another theater that had it. I will not be watching captain america or green lantern in 3d since they are also post-production converted, and i'll be smart and reserve my tickets online unlike last time.
If avengers is being shot in 3d then i will probably watch it in 3d. Post production conversions are a one-way ticket back to the obsolescence heap for 3d if the studios keep it up. Bad 3d movies killed the format in the 80s, and it will happen again if the studios don't get their act together and stop with the frivolous post-production conversions.