I'm asking purely out of curiosity because I'm sure I can't afford one, nor do I need one. But let's imagine I won the lottery and could indulge myself.
What would be the next step up from a PC? Something other than a Mac or Dell with an OS other than Windows, Linux or OS-X. Something that fills the niche previously filled by machines like the VAX. What OS does it use? How much does it cost? $10,000? $100,000? $1,000,000?
And would I have to hire a team to run and maintain the thing?