I know I tend to dump alot of stuff off on NPCs for cash. 5k a day is proably low balling it but 5k x365 days is between 1.5 and 2m a year it does add up quickly. When stropper chyme was still two pops ordelle was often a prime spot for me to farm. sometimes camping stropper sometimes farming Beetle jaws 13k a stack on AH and shield pendants(2k to npc). Id fill up on my 50-60 slots (whatever it was back then) and Id off load it in Sandy and go back while I was seeking on Drg. So im sure back then I was making anywhere from 50k-100k a day off just unloading a bunch of crap onto the NPCs
If you look at the post...the AH wasnt there from the beginning. And even after it was persented their was a bug people exploited. Gigas also use to give alot more Gil then they do now. How much more I do not know.
XI Wiki

