Let's ask Bunny.  How big of a price difference would be between these options:
i) All blank ergodox mods:
http://www.keyboard-layout-editor.com/#/layouts/2cc66ba22cb2091bda30e266669c6db1  R1:  2 identical x1.5, 1 extra geek/hack key from base set (or from white alphas?***)
  R2:  2 identical x1.5, 4 identical x1
  R3:  6 identical x1.5, 14 identical x1, 4 identical x2
  R4:  2 identical x1.5
Total 35 keys, 7 new unique keys
ii) Full color-table mods:
http://www.keyboard-layout-editor.com/#/layouts/b55905f6c7f220f7372782f8747af660  R1:  2 differently labeled x1.5, 1 extra geek/hack key from base set (or from white alphas?***)
  R2:  2 differently labeled x1.5, 4 identical blank x1.5, 4 identical blank x1
  R3:  2 differently labeled x1.5, 4 identical blank x1.5, 14 identical blank x1, 4 identical blank x2
  R4:  2 differently labeled x1.5
Total 35 keys, 12 new unique keys
iii) Half color-table modes (as one above, but mods are the same on left and right side)
http://www.keyboard-layout-editor.com/#/layouts/effabde2a344ba6d67981dbe50ab0b29  R1:  2 identically labeled x1.5, 1 extra geek/hack key from base set (or from white alphas?***)
  R2:  2 identically labeled x1.5, 4 identical blank x1
  R3:  2 identically labeled x1.5, 4 identical blank x1.5, 14 identical blank x1, 4 identical blank x2
  R4:  2 identically labeled x1.5
Total 35 keys, 8 new unique keys
*** I guess for folks wanting to equip just the ergodox it makes sense to get solarized alphas, and not the base kit (although I am now thinking I should get both so I can highlight WASD keys on my CFR and the Dox).
Probably stating obvious, but I am assuming the standard SA profile, not the flat R3 alphas.
Please, also, can someone check if my math is right?