On 8 Aug 2011 at 19:48, William Donzelli wrote:
  I am no fan of the design either, but was the physical
connection or
 cooing ever really an issue for cards that followed the design specs?
 It seems "good enough" - which is just where the bean counters like
 things. 
Just so--I point this out because there was speculation as to what
the target market might be.  But even early on, some cards, such as
the PGC (1984), taxed the design.  I was mildy surprised to find that
three-PCB sandwich didn't fail after a few hundred hours.
The NEC PC9801, introduced in 1982 had a much superior card system.
I remember thinking that the 9801 was probably a better system for
the money than the 5150. (better graphics, 8086 instead of 8088,
etc.)  The only problem was that NEC kept the system closed--
including details about C-Bus.
Certainly PC98 architecture found its way into lots of industrial
applications and is still in use today.
Chuck