@ kano
Yes, I was using the term "highspeed manufacturing" very loosely and agree fully that's Tom's level of communication is refreshing and informative.
As far as this market depth and where it will reach, well I am very curious to see how that plays out.
I am reasonably sure that the vast majority of people will not even consider buying an asic until someone has them as at least very close to "off the shelf" items.
And for the ROI/profitability issue people could compare it to parking money in a CD or savings account and looked at that way you are getting way better returns than what's available in the mainstream banking industry.(or a nice little revenue stream for the small players as supplemental income?)
As for the difficulty question, who knows where we will end up and that might just put many people off that are looking for some pie-in-the-sky unrealistic return based on how things have been up until now.
Thanks everyone for your comments!