Is $450 a good price for a new ASUS ROG Strix RX Vega 64 O8G?

Hi, I am looking to get an good gpu for my first hackintosh, I do have 9900k, z390 auros pro wifi, 16gb 3200, 970 evo 500gb, but I need a nice gpu to get, so I found this ASUS ROG Strix RX Vega 64 O8G brend new for a $450, is this a good deal at the moment, or should I go with 580 and wait for next gen?

Thanks