I have:

VHS - '95 Trilogy THX Edition, '97 Trilogy Special Edition
DVD - '04 Trilogy, Episode I, Episode II, Episode III, '06 Episode IV, '06 Episode V, '06 Episode VI
Blu-ray - 2011 The Complete Saga, Episode VII, Episode VIII, Episode IX (pre-ordered), Rogue One, Solo
Ultra HD - The Skywalker Saga (pre-ordered)

When my girlfriend moved in, she had the Prequel Trilogy on Blu-ray, the Original Trilogy on DVD and The Force Awakens on Blu-ray. She keeps her collection separate from mine. I bought her copies of The Last Jedi and Rogue One for Christmas last year and will get her The Rise of Skywalker and Solo for Christmas this year. She likes having her own collection.