Reliability, ease of use, UI software, design functionality, control layout, LED metering, sound quality, rackmount. It covers everything I would want in a high end interface. It even looks like it's worth $1000. Just the number of complaints on the Focusrite UI software is enough for me to drop it from the list. The Sound Devices Interface looks like someone's bench project thrown together without any thought on ease of use or UI.
And I have the Motu M4 which sounds perfect and is so damn simple to use I forget it's even hooked up. Set it and forget it.
MOTO has so many choices of interfaces for around $1000 it's confusing.
https://www.sweetwater.com/c682--MOTU--Audio_Interfaces
I filtered the search to " price High to Low