It's unlikely we'll add a crypto payment method until something gains widespread adoption. The state of crypto payment solutions is very volatile right now. Also, keep in mind this won't magically get rid of fees, since most buyers will likely be using traditional fiat currency through our current provides, which have a fee per transactions. Thanks
When I was reffering to fees, I was aiming more at the transaction of the crypto itself. Of course all regular fees would have to apply, but with Bitcoin you would pay a small amount for your transaction to go through at all. With Nano that's not a thing.
But yeah, I can see the issue of adoption and payment sollutions, at least if you have to implement more than a single cointype.