At this rate, haven and hearth is not a good game. Look, okay, i understand the developers do this in them free time, and they go to schol etc.
But there really has to come a way to earn more money for upgrades. There are like 2-3 crashes of few hours each day. I have two ideas to earn more money.
1. Advertising
This could be annoying for people, but is is better to join a advertise website to earn money, like clicksor or google adsense.
2. Game shop
Maybe like that there has to open a shop, that people can buy like special items, a coloured name or upgrades for the character.
The first idea really has to come. If like, i don't know, 2000 + people visit the forum each day, and you have advertentions that pops up, you will earn some good money each day.