The big difference we have looming now is as a result of the demographic
changes taking place in New Zealand over the next few decades.
New Zealand, like many other western nations, has a reasonably rapidly
aging population. This is especially due to the baby boomer phenomenon
which was a post war baby boom coupled with declining birth rates since the
early 1970's. A large number of businesses in New Zealand were set up and
are currently owned by baby boomers many of whom are starting to reach
retirement age. This means that we have a large number of potential businesses
coming up for sale with a smaller group of potential buyers.
Add to this the recent phenomenon of market convergence - larger businesses
swallowing up smaller ones and driving down the costs to consumers which
makes it even harder for smaller players to compete.
Rather than "scaremongering" as you put it this is more about being aware
early that the playing field is changing. And as with any change, those who
are prepared stand to be best placed to benefit from it. In this case those
with the best dressed (best prepared) businesses are likely to be best placed.