I pulled the trigger. Risk is low. Payout is potentially high if they honor it. I have 3 Unlimited Lines on one family plan and 1 Unlimited and 1 Basic on another family plan.
Now that all my other lines are upgraded and under contract, I have no need for the basic line. If Verizon honors this, I'll be able to consolidate and potentially have 5 Unlimited Lines on 1 Family Plan.
I did hesitate a little, mainly because the new line will not be active before October 1st and may be subject to Network Optimization. I was even deciding whether to get the 6 or a 5s instead, since it would ship sooner.
However, the 6/6 Plus should have a lot higher value initially.
If they don't honor this, it should be fairly easy to cancel.
Plus, I saved the screenshots and I'd understand being skeptical if this was through any other 3rd Party Retailer, but Apple doesn't make mistakes and Verizon knows that.
I'm sure they were offering this as a reward to entice more people to sign up, particularly those who may not have known this phone was being released if not for this promotional offer.
Plus, it'll be cool to have a new toy. Might even try to root it, uninstall Safari, sideload chrome, and swap out Apple Pay for Google Wallet.
It'll bring back memories of when I was running CyanogenMod on my Iphone 4, before I made the jump to Android and never looked back.