I know this is a little old, but...
As someone who hasn't used PnP machines before, could you elaborate on when using something like this would save time? I'm a hobbyist who builds a lot of one-off boards, and a fair number of small volume (say, 5-10 board) designs. Right now I place parts manually using a tweezers. It's fine, but if I could e.g. take half as long to assemble those (without spending all of my time tuning/maintaining the machine), it would be worth buying a $800 machine.
I read through the how-to for the LitePlacer, so I have a little idea of what I would need to do for a machine like this. What sort of things end up taking the most time? How annoying is the work, versus manual placing? How much fiddling/tuning is required?