I managed to get one on Amazon, waiting for ship date.
Their dedicated miner hashrate does not look very good, depending on the MSRP.
If the 3060 mines at 24, given what I'm getting on an RX 470 today, that still means the 3060 will make $3.12, thats 130 days ROI before electricity costs.
Two months ago I was mining the 470 at about $1.20 a day and as long as I broke even on electricty, I was OK.
So, nice try Nvidia!
You're not taking into considering the difficulty going up and electric of course. No one is going to be paying $329 for these, more like $400 with taxes.
This is not a desirable mining card at all. GTX 1060 6GB can be had for cheaper and do the same.