If you love your home or if you have found a better place for it to be, then it may be a good idea to look at moving an entire house. Also, if there are disputes over property lines, flooding, or other damage to a foundation, you may be at the point where it’s best to just relocate the actual house.
Also, if you have a home that is designed to be mobile (double wides, trailers, etc.), and you’re moving, it may end up being a little more affordable for you to just take it with you. Instead of buying a whole new house, you can just buy the land, get the foundation laid, and then relocate the house. You’ll have to compare prices to see if that works, though.