I guess I got extremely lucky in finding the deals I did. I ended up getting all 4 of my extra panny glasses(2 1st gen and 2 2nd gen....or maybe all 4 are 2nd gen) for $350. That includes Coraline, Ice Age, and Avatar all in 3d as well.
I found the coralline/ice age/2 3d glasses bundle at sears for $100. As far as I know, I literally got the last bundle in the nation from sears. I got the Avatar bundle at Modia for $250.
I am, however, looking for an extra set, simply because im looking for something light and comfortable.