I appreciate the skill involved in S&V, but I watched the Krajiceck v Sampras match from '96. It's not exciting to me.
It is a high-risk, high-reward style of play. I'm not convinced a guy with the size and the serve of a Raonic couldn't be successful even today had he committed to that style early and made that his playing style.
A high level S&Ver in today's game would have one huge advantage in that no opponent could possibly prepare or be prepared for their game. That in itself would be worth much, IMO. I just don't think anyone has the coconuts to try it.