I came here to post something like this as well. I'm less concerned with bootup time and more concerned with how much time it takes to get to actually using the system. its still in the 5~10 minute range for me.
That seems weird. My PC is rather slow for a dev machine (+ a few lowkey games): i3 @ 3.3GHz, 16GB DDR3 RAM, GTX 550 TI, Samsung SSD 830 for the OS. Windows 8.1 Professional. I just took some non-exact measurement (stopwatch) from pressing the power button:
26s to login screen, another 13s from pressing enter after login to having Chrome show me a useable Outlook Web Access.
And I haven't performance optimized anything. Steam, 2 VPN clients, Trillian and Directory Opus all load on login.