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The olimex company just announced the: RVPC - a kit PC with a RISC-V CPU, and they say it'll cost US$1
(olimex.wordpress.com)
This is a most excellent place for technology news and articles.
They must have different prices for different regions, I'm also told the "normal" price is Kr 109,82 DKK = $16.16 USD. Shipping is $7.71.
If it was sent from EU when sold to EU, so there wasn't any import fees or taxes, it would be very nice, but these sites rarely write where they are shipping from.
If you're curious enough to get one, I've seen them on ebay as well. Might even be available on Amazon. I think they've been around for a couple years, I just got mine in April but still haven't had time to fire it up and play with it.