One benefit of a pre-manufactured home is that there are many different styles to choose from that fit a range of budgets, so it's very possible you will find a house you like.
Before you go ahead with the purchase, however, you will need a piece of land to put it on. You have a few options here as well such as buying the land to put your home on or leasing land that is especially for pre-manufactured homes.
You could also purchase the house and land together.
It's important to check all legal requirements associated with pre-manufactured homes. For example, you should find out about utility connections and zoning laws, etc.
Another thing you should become very familiar with is the manufacturer's warranty. Make sure that the warranty will cover the transportation and installation of the house and check to see the kinds of actions that would void the warranty, like failure to adhere to the home’s maintenance guidelines.
When the time eventually comes for your new pre-manufactured home to be delivered, make sure you have it inspected thoroughly by a qualified home inspector as this will ensure your home is fit and secure to live in.