To the OP, answer is not enough exposure on VAC and very pricy equipment. I would add a limited distribution in terms of dealers and maybe a very specific kind of sound that will not please everybody.
I have a VAC Standard LE and disagree with some comments here. I must say before I got this unit, I tried a Calypso, a VTL 5.5 in my system and ended up with the VAC. I will admit the Standard will need close tube rolling before one gets it right for his taste. As for the rest, it will pinpoint like none of the above do, is quite transparent with very good detail and very dynamic. I still have it, even if I got a CJ Premier 16 MK2 along the way because I simply can't figure why I should get rid of the VAC.
I have a VAC Standard LE and disagree with some comments here. I must say before I got this unit, I tried a Calypso, a VTL 5.5 in my system and ended up with the VAC. I will admit the Standard will need close tube rolling before one gets it right for his taste. As for the rest, it will pinpoint like none of the above do, is quite transparent with very good detail and very dynamic. I still have it, even if I got a CJ Premier 16 MK2 along the way because I simply can't figure why I should get rid of the VAC.