I think the addition of the obscure Gulf Comics issues is important since very little has been written about them and I know of no other location that actually has scans of any issue. I recall a short article on the Gulf material in an issue of the Overstreet guide, and I did see photographs of a few pages of a few issues that were offered on E-Bay, had it not been for those two sources, I wouldn't have known exactly what the discussion was about.
I doubt there is much of any real interest in the entire series, but I think it is important to preserve some issues for posterity.