Peter
I think that calling pressings / bootlegs "second issues" or "re-press" has come about because of ebay; I don't think you can list a bootleg as a bootleg because it was never produced legitimately i.e. paying royalties etc, and it's not good to pass off a fake, intentionally or not, as an original.
99.9% of records out there are either originals or pressings, but sometimes bootlegs are sold as originals!! Due to demand a few labels did re-issue stuff (Artic ?), but often on a 'sister' label; the Vibrations you are after came out on Epic, but was re-released on CBS- Columbia Special Products. However, the spinning of legitimate re-issues may be frowned upon because there are originals out there that you could buy and spin. Nevertheless, labels like Kent, that have put out unreleased stuff are regarded in a different light because that's the only way of playing out the sound, and they're legal!