That might also be the reason I didn't awaken Greed. I want to greedily earn gold. But in the end, this world's money is just a necessity for me to survive the waves, nothing else interests me. Since I'll be returning anyways, before I go I'll just give it to Raphtalia as recompensation for everything up until now. Of course I've thought about living in luxury for a bit, but I'd just end up spending it on equipment and investing in facilities.