maybe it's just internet forum mythology but there is a lot of talk about reliability issues with newer Marshalls. They obviously shift many units so it could just be that they have the same percentage of issues as other manufactures but it's something worth considering.
Could you find a local shop that would get close to the price, would make things easier if you have any problems.
I am planning on taking a bit of a hit with the price and buying a JVM locally for this reason