Do you keep a regular Blu when you get the Steelbook?

[mikeyt912]

here is a question. If you already owned a regular blu of say " The Dark Knight " and you bought the Steelbook, do you keep your regular blu too or do you sell it? I am in a dilemma. I bought a bunch of Steelbooks of blu's i already owned and can't decide whether or not to keep the regular ones too or sell em and make a little bit of money. Figured i'd see what opinions you guys have.