Keep it MISB, maybe have it graded, then display it on my shelf.
Keep/display MISB, I like that stuff
Open and keep for play/display
Sell it and buy a loose complete one, to make some money
Other (please specify in comments)
Keep it MISB, maybe have it graded, then display it on my shelf.
Recent Acquisitions: Missing Link Optimus, Bumblebee, Cliffjumper
(Pre-)ordered: Missing Link Sunstreaker, Arcee
Wants: Encore Headmasters!