Our house corporation has to deal with this on a regular basis. People just don't seem as willing to share rooms, bathrooms, etc. as they used to. A lot of new university housing is catering to these wishes. People just don't seem to want to compromise their wants for the good of the group. I have also seen a lot of groups that have lost their houses because they overbuilt and then couldn't fill the house, thus defaulting on their mortgages. My recommendation is to never need more than 1/3 of your chapter to live in the house to be able to make the payments/bills.
Also, my alma mater has decided to offer two year housing contracts, where students who live in University housing the first year will pay the same rate the second year. Parents are all about the $$$ and commit to this contract before their son or daughter even start school. They can't break the contract, and they can't move into Greek housing until their junior year! Its a growing problem