I think faceplates collecting is more and more popular and correct faceplate valuation is way more complex that before.

When looking to get a fair faceplate price I'm considering the following factors:
Originality, Art style, Color Style, Quality, Rarity, Manufacturing, Materials(and work)

For example: Space's faceplates are covering all those factors ... and I can easily give them higher value that other rare faceplates ( no, i don't want to sell any of Space's faceplates I have)

Any thoughts on this topic?