Was just able to purchase this at Broadway Pro Scooters online with no issues. Free shipping. No tax to Arizona.
Free T-shirt selection pops up in the checkout (1 style, available small or medium - it's branded for Broadway Scooters, not Gopro)
I have no experience with this website, just found it on google shopping. Was unable to find any cashback sites for it. They have great reviews on Trust Pilot and Google so I'll let it fly this time. Paypal accepted.
$350 @ Campsaver [campsaver.com]
- On backorder but looks like you can purchase (16-27 day wait)
$320 Google Shopping via Broadway Pro Scooters [google.com]
- After $20 coupon DECSAVE19 (likely one time use, ymmv). I tried this but it tried to charge me $30 tax on google, while going direct through Broadway Pro Scooters was tax free. Might vary by location, again ymmv.
GoPro store has some kind of trade in deal that might be better for some people. I'm buying this as a gift and don't have a GoPro so I haven't looked into this.