You can buy the M3 without the attached keyboard (it's called the M3-M).

I am still waiting to hear if the sample load times have improved, as of now (Triton Extreme, MotifES) all of these workstations have glacial load up times that make it impractical for live use.

The new MotifXS has USB2 and ethernet connectivity, and USB2 connections on the M3, but no posted information exists for sample load time, yet......

Let's hope they finally join the 21st century in regards to memory loading times, I am fed up of my ancient K2500 being the fastest non-computer sampler on the planet (MS, Neko and Receptor are all computers)..........