Two things that I'm100% sure:
- Player should be able to get any one unit, artifact or spell for ducats
- Player should be able to keep one company at full health or two of them without major wounds (ACC/DAM/PAR/TOU on fighters and WILL on mages) and still make any "progress".
Both while being no more than average player that wins only 1/3 of his total PvP games.
So all depends not only on prices but also on incomes (missions, quests, challenges)
Previously it was acceptable - now its rather hard to make any progress (buying elites/legendaries) while keeping companies healthy. Especialy when someone is new to the game and simply don't knew what to choose.
About elite or legendary units - imo the bigger problem is about choosing their skill tree while being new to the game and while bad decision costs 30k for each legendary unit
So maybe a dditional option to resetr skills for a price? or (imo more intersting) a option to hire (high level) mercenary unit for much smaller price but for limited time for test purposes.