I highly doubt that, just look back a few years ago and see what cryptocurrency mining did to AMD card prices upon its launch, the days of $900 R9 290s where the competitor was nearly half the price at the time. Miners are just (sorry if this might be offensive) mental.
It is also terrible, in my opinion, to buy a product that is inferior for the use case, just because of the brand.
Of course, if your intention to buy a card is cryptocurrency mining, then I would say Vega is the best choice today (assuming its available, and the price is not inflated).
I would say AMD should have released a “Vega Miner Edition” and promote GPU mining, as I think it is a strength they have, and they are not really taking advantage of it. Instead of fighting in the existing market against an (arguably) stronger competitor, why not create your own market and dominate the crap out of it?
Yes it is true, but if a product is inferior in a certain area, there is no use in hiding the fact. Its a matter of which product suits you and your use cases best, as I mentioned above.