Twilight Sparkle on Deal or No Deal

Twilight Sparkle has been playing Deal or No Deal for the past few minutes now. She has eliminated eighteen of the twenty cases that contain the twenty amounts listed above. The problem is that the last two cases contain $500,000 and $1,000,000. Twilight is presented with a final bank offer of $716,000 (the expected value was $690,000). Will Twilight push the button to take the banker's offer, or will she close the box containing the button and play for the $1,000,000 grand prize? Remember, if she takes the banker's offer, she will keep her money, but if she rejects the offer, she will have to either keep her case (19) or swap her case for the remaining one in play (6).

Twilight vector is from masemj.deviantart.com/. Seating image courtesy livedesign.com/.

MLP is owned by Hasbro, while Deal or No Deal is owned by Endemol, which licensed the show to the following broadcasters listed below.

NBC (United States)
Channel 4 (United Kingdom)
Seven Network (Australia)
RTL (Netherlands)
Sat 1 (Germany)
RAI (Italy)