1) SME dealers, keen to secure the most profit, will unlikely encourage potential customers, on a budget, to buy it, when they can instead sell them a 309.
2) Potential SME customers, on a budget, unfamiliar with just how good the M2 is, will generally ignore it in favour of the 309, often because the latter looks 'sexier' and is considered as a 'proper' SME tonearm.
3) SME themselves don't go out of their way to promote the Series M2, and so it's not largely showcased in the public domain.
However, the question that begs to be answered is that if the improvement between a Series M2 and a Series V isn't dramatic, then what is the difference between an M2 and a 309?
In my view, the Series M2 is where the real 'SPPV' is in the SME range (and the new version of the 3012, above it), but it seems to be largely the preserve of 'those in the know'............ And the Japanese certainly come into that category.
I think it's time the fact that the M2 is a hidden gem was 'outed'!
Marco.