It has a rolling clock on when this deal ends, based on the amount sold. 500GB is $249.99 inc remote.
It has now ended.
Got one.
Sigh missed it got to wait till monday
Apparently it will be back up on Cyber Monday, but there is still the other sellers at $150.
Just got mine today. Loving it so far, but the remotes were all sold out :(
I guess the lightning sale was the Cyber Monday sale since Amazon now says "Cyber Monday" and "the deal has ended" on the bottom of the page. I was going to wait until Monday, but I have a bad feeling the deal won't be there. So I purchased on GameStop.
If you missed it on Amazon: http://shield.nvidia.com/black-friday