ingame? I dont think so.
Inflation is such an issue with games these days and to be fair I dont know if its "games these days" or if its always been a problem. In FONV I spend half the game with over 20kcaps, though I play vanilla GRA so no huge money sinks (like GRA) besides repairing
to be honest I havent played FO3 in three years and sold it recently so I dont remember how many caps I Would have but I do remember being able to invest in the four traders to the max
so long story short (too late) Id argue the increase in prices are to limit ingame inflation. Can you think of anything that is cheaper in FONV than in FO3?