The economic development minister says spending money on consultants to promote the TT to a global audience is essential - to ensure the scope for expansion is fully tested.
North Douglas MHK John Houghton has accused DED of wasting money on external consultants, as it continues to investigate the concept of developing a TT world series.
But Laurence Skelly says it's essential the market for TT-branded events outside the Isle of Man is explored professionally:
"He enjoyed hearing the Manx national anthem!": King greets guests at Government House
His Majesty meets representatives of the Manx community at Garden Party
Crowds gathered in glorious sunshine to see the Monarch
Live blog: King Charles visits the Isle of Man
Updates from the Lord of Mann's first visit to the Island since ascending to the throne
King speaks of Island's 'enduring partnership' with the crown
King Charles III spoke in Tynwald this lunchtime