Amiga takes long time to boot

[Lo]

You do mean the workbench disk prompt?
Only the A1000 gave a kickstart disk prompt
if memory serves.  The rom was unfinished at the
time, so they added the rest of the boot coded to a
kickstart disk.  15 secs on a 14Mhz machine doesn't sound too bad.

[Lo]

Is the time that long so slower hard-drives could start before amiga does or what? Or is there just something wrong with this wonderful peace of hardware

Oh go-on, I bet you can butter-up all the Amigans!
 :-D

Peace, Bruddah, and may the spell-checkers live long and prosper! :-P