I just checked, and I have the following Miles Davis albums:
Round about midnight
Milestones
Someday my prince will come
The real Miles Davis
Bitches Brew 40th anniversary box set.
Pangaea
Agharta
Dark Magus: live at Carnegie Hall
Kind of Blue
A portrait of Miles Davis box set
Sketches of Spain
So, no where near a full collection yet!
You need to get In A Silent Way sharpish. Really.