Actually, your opinion is not only wrong but also the opposite of what happened with Blackberry. Unlike fried waffles or Groupon, Blackberry never lost its core

Actually, your opinion is not only wrong but also the opposite of what happened with Blackberry. Unlike fried waffles or Groupon, Blackberry never lost its core business -- that of enterprise sales. Blackberry was never a fad -- it was a genuine productivity tool. There were not much of entertainment apps on BB. In fact RIM never took Iphone or android seriously until it was too late. They thought third party developers were a bother. They had repeat business from government, enterprises and telecoms; even now a large chunk of their core customer base is still with them ; however the momentum has swung towards consumer oriented devices. I remember running in Jim Balsille at a fund raiser and I told him how atrocious the developer support was for blackberry compared to Android and I left with a sense that third party developers were not a priority for them. There is a lesson to be had from Blackberry's decline but its not the same as Groupon /HerbalLife /Fried waffles.