Solid-Stark on 18 December 2011
I remember reading GT5 cost about 60m, add marketing (its Sony :P) I doubt it's more than 90m total. That means GT5 made profit week 1. Not to mention Prologues 5m sales.
e=mc^2
Gaming on: PS4 Pro, Switch, SNES Mini, Wii U, PC (i5-7400, GTX 1060)