All good points. I don't agree that you can make a shot over and over in TPA, any more that I can in my real pins, but TPA is just a little easier. They want the players to have fun playing so the difficulty is turned down just a little.
My favorite thing about TPA is that I never see a pin like Road Show in perfect condition in my travels, but I can play one in TPA that looks like I am back in '94 forever.