Is the issue, rarer and worth more than the white demo, or are they of a similar value?

Yes in my opinion it is a lot rarer than the demo 

I thought so, great record and that looks like a really nice copy. I am tempted

1 hour ago, Okehdownsouth said:

Is the issue, rarer and worth more than the white demo, or are they of a similar value?

Here it behaves approximately as with the stockers of RCA - the blacker the better - means rarer!