Hello,
It's an interesting extension but very few reported sales, only 79 sales in 7 years with the highest one for Wallet.one for 49K almost a month ago.
About +80% of these sales are within the 3 figure range including one word "Bet, Car, Casino, Phone, Insurance, Art, App, etc ", three letters & three numbers.
I don't expect much as a price for this domain unless you can outbound to an end user who really can benefit form using such a domain.
I also recommend to place a BIN price instead of the make offer on the landing page, I think you can benefit from that little change.
Wish you luck!