I understand the game is unfinished, but one thing I thought about while playing was the minimal feedback from the farmer and no real clue what things how much money they have. It would have been nice to know if the farmer happily bought everything and wished there was more for sale (you under-priced), they tried to bargain but bought everything (you were right at their threshold where they almost skipped something) and so on. I think as a game mechanic it should probably not be fully transparent either.
I also felt there were lacking clear information about my own costs, both for restocking after sales but also monthly upkeep. Because if there’s no cost beyond buying new goods, why should I not just keep prices as low as possible to keep the farmer as happy as can be?