Members who want to get Nvidia Shield for cheaper rates, would give you one super trick to shelve atleast 100$.
Sign up on g2.com
You will start getting mails from them to write reviews for software products and get $10 dollars per review written.
This review can be of any software you use daily, chrome, excel, outlook, etc.
You get a virtual credit card once they approve the review on g2 account.
Go to amazon add amazon balance and use the virtual gift card, start adding 10-10 dollars.
If you manage to write 20-30 reviews, you can get the device for free.
This doesn't work on Indian Amazon account. The cards are only for US use.