The PN50C490 comes in at $989, making it the cheapest new 3D set.
Remember back when 3D television was first being brought to market? There was a giant to-do about the price premium you might have to pay for the privilege of owning a 3D set. Samsung just shut that argument down.
Samsung's new 50 inch plasma has an MSRP of $1,099 but is available right now on Amazon for just $989. You're not going find another new 3D television at that price, especially one that large.
The downside is that you're looking at a 720p set. Depending on who you ask, the change in resolution from 720p to 1080p doesn't really matter when you're watching 3D. For two dimensional pictures though, it's pretty noticeable at the size.
There's no official date on these sets yet, but Samsung says to expect a release sometime later this month.