I think the prices are fair and pretty standard for other games that I see. I do like the exclusivity of the packs with the limitations of how many can be purchased in the different categories.
I think the best value in the packages is the Immortal package. I would probably look at either the Governor or Aristocrat. They are good without going too overboard crazy, but I'd need to find out what the whole govern a town involves.
What happens if I buy the package and then don't play, what happens to my town does it become a ghost town?
What happens if someone buys a package that includes governing a town and then doesn't play or doesn't create a character? Is there going to be a stone block somewhere that would be their package? Life happens sometimes and plans made now may change 
Since I"m the Governor do I need to pay upkeep on the town like you would for a house?
Am I supposed to be enticing people to come live in my town? What if I have friends that are also Governors can we pool out towns into a bigger town?
If someone buys a larger package like a Duke do they still need to Govern the town or are they past that level?
I'm sure I have other questions but I'm sure you get the idea.
I don't think the packages should have foundation points. You'll get different people interested in the Kickstarter than in the Foundation.