You can get the box set, which includes every movie made from Iron Man until Marvel's The Avengers, for 55% off its $210 retail price, running you $98.99.
It comes packaged with custom sleeves for each Blu-ray (since the standard amaray cases aren't included) and liner/production notes made to look like S.H.I.E.L.D. dossiers and ten total discs, including a bonus disc only available in the box set. The whole thing is packaged inside a replica of the briefcase in which the Tesseract was stored during its time at S.H.I.E.L.D. You can see the image above for reference.
The set was delayed for a time, as the actual briefcase company initially filed an injunction claiming Marvel had wrongfully "counterfeited" their product by making a facsimile for the box set, resulting in modifications made to the case and, reportedly, some extra bonus material included during the production delay.