The Mets sold for $2.4B in 2020 and are currently estimated to be worth $2.9B per Forbes.
So yes, they're worth roughly twice what the Twins are worth.
Also, FYI, per Statista the average NYY ticket was just under $66 in 2023, not $276.
https://www.statista.com/statistics/203489/new-york-yankees-average-ticket-price/#:~:text=Published by,data was available for 2017.