You're absolutely right. Here are two tests from me, posted on another forum.
Power on to desktop:
950 EVO 500GB - 23.45s
960 EVO 1TB - 21.90s
DCS: Mig-21 Instant action->Free flight loading time:
950 EVO 500GB - 46.60s
960 EVO 1TB - 36.70s
In the second one there is a noticeable difference...
No, you are not stuck!
My mobo is P67 Extreme4 and boots perfectly from my new little 1TB EVO 960 m.2 drive. You need just bios mod. Guide can be found on win-raid forum.
Thanks for the suggestions about M.2 drive. I prefer to put it in PCIE3 platform. What can we expect from Cannon Lake? Same overclockability or worse due the new process (like Ivy Bridge vs Sandy Bridge)?