Yinka Shonibare, MBE on Nelson's Ship in a Bottle

[cybercusa]

If "there couldn't be a better value for that piece" then why is the charge to the museum £362,500? Doesn't the artist benefit from the display of this work in the museum too? I say get a fantastic model maker to make a similar piece and charge the museum a 5th of the price than this artist is expecting to get paid.