I think this is the reason. It became irksome to license - each track individually - and UMG has very slowly been reissuing some of the British Jazz golden era material on vinyl. Some on CD and DL too. I think there may be more in the pipeline but heard nothing concrete and anyway things move at a glacial pace with these albums. However, on a slightly less downbeat note, at least three Nucleus albums have been reissue this year on CD by the French company Musea. I realise this doesn't help folk eager to have older stuff reissued but it will happen,eventually (he said, optimistically). Meanwhile ECM has reissued the wonderful Azimuth (Taylor, Winstone and Wheeler) debut album on vinyl.