Has anyone ever done a Ball service where Ball replaced the tritium tubes?

Was it expensive?

Can watchmakers also do it provided they have got a Ball parts account.

I ask the question because I have never seen a collage of ‘before and after service’ photos of a Ball watch where the tubes have been replaced.

What happens to all the 10 or 15 year old Ball semi-vintage watches with tritium tubes?

Isn’t this holding back the sale on the secondary market?