I've been on the fence about opening all my black series figures. Do you display yours? If so how do you do it? That would be my only concern as they are easier to display when still in that box.
I have some displayed on wall shelves that I bought at Target a couple of years ago. The rest are on a bookshelf I have in my room. They all stand pretty well on their own, although Han in Stormtrooper disguise falls over every now and then.
Try picking up an Detolf display case from Ikea. They can make things look cleaner with the right setup. That's what I use for my figures.
(here's an example, not my pic)
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God damn.