With AHCI enabled, regardless of my first boot device, it always checks for media in my SATA DVD-RW, which takes about 4 to 5 seconds.
That's only due to the fact that 'boot priority' will be reset to defaults (#1: optical drive; #2: HDD) when you enable AHCI, so you just have to remove your Disc Drive from the boot devices list. EDIT:
And YES, threads of the type "What's your..." and "Show us your..." are bragging threads to a certain extend
BUT envy serves as a great motive to optimize your system to gain those 2% of extra performance that separate your system to the one of Person X with the higher scores!
PS: Good thing I'm not a big fan of Freudian psycho-analysis because then one had to argue that it all comes down to "What's /Show us... [the size of your weener]! EDIT2
: ...which leads us to an entirely new interpretation of the acronym WEI!