The coupon explicitly says it does not work on ps4 or xb1. I don't think it mentions the 3ds anywhere.
I got in on the Amazon deal for $150, but my backup plan was always the Target coupon.
For those of you who missed out on 3DS XL, the easy way to get this is to buy $75 worth of stuff at Target on Friday. Then you will get a 20% coupon that you can use later on a full price 3DS.
$200 - 20% = $160
If you have a red card it will be
$200 - 25% = $150
You do have to spend $75 at...