Let's throw some ridicilous numbers around:
150M (dev costs, manufacturing and marketing)
Revenue first day: 220M
Copies sold first day: 3.x something.
Copies sold now: 5.1+M
Price : Still high.
Halo 4 like any Halo has made a ton of profit already.
Halo is a 3B+ franchise, total costs for games will probably be around 500M.








