Do Director's Cuts / Unrated Editions Take Advantage Of Us?

[WickyWoo]

My question is this: Is this just a gimmick that studios now use excessively to make us believe we are getting something special and fall into their trap of purchasing a movie we may not have in the first place or double dipping on Director's cut? Do all director's cuts actually get supervised and approved by the directors to give us their unique perspective of the film they made, but were unable to release the version they intended to in theaters due to studio control?

Unrated Editions: Are these also just studio ploys for increased sales. Again, purchasing a movie we may not have in the first place or double dipping on films we already own?

Yes to both

Maybe one in five is an actual restored version