Well if money was no object I would probably honestly be getting the signature S8's. That is interesting though because I don't like too warm of a sound as it seems to me like it is sacrificing detail but owning the Monitor 7's I personally thought they were thought of as bright which is actually why I chose those over the 11's which to me did seem muddier or more of a hard rock speaker.
I think the only thing I would gain with the studios is a better look but that is just my opinion, I am not keen on the angled edges of the grills of the M60's but then again I can just leave them off too!