As for Digital pins, sorry... but I dont agree. Theres nothing like the real deal. Ive played plenty of virtual pinball and future pinball... and they just make me more frustrated than anything else.
The tables look like butt. Poor shading, poor lighting, low quality art scans, many times the perspective is from a midgets point of view, colors are usually off due to poor lighting, Ramps, toys, light covers.. all usually are visually unbearable. The look is flat obviously, and in person, its even worse looking than you can imagine.
(if you want to see an example of good looking virtual pinball tables, see Microsoft's old Pinball Arcade cd.)
Digital pins Physics are poor. And the analog abilities are still really weak. Shaking a table feels nothing like shaking a real machine. (I have a feeling some people dont know how to work a pin correctly here, using lite bumping and flipper tricks, as well as ball spin tactics) In fact, you cant feel anything on a virtual pin. With a real pin, you can sense the smallest things... from position of the ball (hear it as well as feel the ball rolling), as well as how hard things hit, and how much you have to bump things...etc..
And finally, you have issues with the motion blurring because even decent LCDs still stink for fast moving objects.
All in all, Id never trade my real pin for a virtual pin.
At very most, I might build one as an addition... but only if things like head-tracking (seen on the Johnny Lee's wimote demo) is added - to create 'on the fly' 3d perspective / depth... as well as supporting analog inputs better.