I once built a vp cab,
It was pretty cool but nothing compared to real pinball.
Yes it can be fun, yes its looking better each new version, yes physics are getting better
But its always a little off imo.

But i must confess i am to ocd for it, i kept changing settings per table and trying to get that real ball feeling
I was putting so mutch time in tweaking testing, and then feeling mweeehhh
And some tables are better then other.
Future pinball had some cool features but visual pinball is mutch better.

You better start with a monster power pc if you ever want to build one.
Also tv or monitor screen lag can be a bitch.