Interesting. Maybe if you want to play everything, you've a limited budget and space, they'll be for you. If you're a player who wants to know rule sets for tournaments it makes sense having one though.
I think most of us here would sooner have a ratty, tatty solid state or come to that EM to play real pinball. Would I have anything 1up? No, not for me. Virtual pinball is only ever going to virtual no matter how good the graphics are, the physics is.
If I can't get under the glass, clean the schmutz out, change bulbs and wax it, I don't want it.