I just remembered about Minerium!

I have a Genesis Address, but for what I can see I cannot do nothing except pay 0.5ETH and wait years and years.
At that point probably the value is zero.

Has anyone upgraded? What is you experience? Is it worth it?

Regarding selling the address, I can see some recent transactions
https://www.minereum.com/v2/tradelevel1

But I don’t understand ETH Price and ETH Fee... Does it mean that the address sold for 0.1ETH?
Has anyone sold a Genesis Address?