A bit harsh there to call my suggestion stupid.
The cheapest rx 480 I see in-stock on newegg or amazon is $200:
https://www.newegg.com/Product/Prod...norebbr=1&cm_re=rx_480-_-14-137-082-_-Product
The cheapest rx 470 I see in-stock on newegg or amazon is $175:
https://www.newegg.com/Product/Prod...norebbr=1&cm_re=rx_470-_-14-131-705-_-Product
(mail-in rebates are available, but you still have to pay the original cost upfront and it may take a while to get the prepaid card in the mail)
Your link has the rx 470 for $150, (or $120 after mail-in rebate), but I see it as out of stock at my location and it's also possible that brawly may not live near a MC. Also keep in mind that you'll be paying tax as well if you buy from MC, making it actually $162.35 out the door using Texas taxes for example. (note for brawly - if you
can buy this then it is a good deal)
I don't believe the 480 4gb is "10x better value at that price range":
https://www.techpowerup.com/reviews/ASUS/RX_470_STRIX_OC/16.html
http://www.guru3d.com/articles_pages/msi_radeon_rx_470_gaming_x_8gb_review,17.html
It's great to offer alternate suggestions to give brawly more choices, but I would hardly call my suggestion "stupid".