Is the KTR04-1 train kit still in demand by collectors?

Yes, as a 2003 vintage item from the 9V theme, it holds appeal for classic LEGO enthusiasts.

What is the condition of the LEGO Large Classic Train Kit?

The listing specifies 0 pieces, so its condition is dependent on the actual item's completeness and state.

The LEGO Large Classic Train Kit (KTR04-1) belongs to the 9V theme.

Name: LEGO Large Classic Train Kit with Speed Regulator (KTR04-1)
Brand: LEGO

9V · 2003

Theme · 9VPieces · 0Set Number · KTR04-1Year · 2003

Used

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New / Sealed

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Is the KTR04-1 train kit still in demand by collectors?: Yes, as a 2003 vintage item from the 9V theme, it holds appeal for classic LEGO enthusiasts.
What is the condition of the LEGO Large Classic Train Kit?: The listing specifies 0 pieces, so its condition is dependent on the actual item's completeness and state.
What theme does the KTR04-1 train kit belong to?: The LEGO Large Classic Train Kit (KTR04-1) belongs to the 9V theme.