Yeah, I couldn't agree more. I think the main reasons why all these films are being re-released in 3-D is because of the innovation of 3-D tvs and due to the success of "Avatar." By re-releasing them in 3-D, they can can re-release the DVDs in 3-D to make even more money in addition to the box office numbers. At least, that's what George Lucas claims when he made an announcement earlier to re-release his entire "Star Wars" movies in 3-D as well.
However, I don't know why so many films need to be in 3-D anyway. I mean it's great every once in a while, when taken in small doses. However, if you constantly watch them, then they tend to hurt you're eyes after while. At least for me anyways.