Unusually long boot time in non-verbose mode - early 2008 MBP + SSD + Mavericks
Start in verbose mode and see what takes time. Here is how:


Shut down your Mac if it is on.
Press the power button to start the computer.
Immediately press and hold the Command key and one of the following:
...
the "v" key for verbose mode.  (Command-V)
You have successfully entered single-user or verbose mode when you see white text appear on the screen.


If it is "fsck", than you should start backing up your data – disk is most likely is failing.