Buildings are available to buy new, buy recycled, or hired and can be can be designed to fit into difficult locations and tailored to suit the client's budget. (educationbusinessuk.net)
More often the advantages are scalability, quality and being able to build in difficult locations. (elrondburrell.com)
As the dog masters the game, your child can hide in more difficult locations [source: ASPCA]. (animals.howstuffworks.com)