why dont you and your friends go in together and get something
Just because they're friends doesn't exactly mean they're suited to live with one and other, (temperament and lifestyle wise, etc...).
Plus, they may have different needs in living spaces (geographically and residentially speaking). Some may need to live a bit closer to their work. Some may find cheaper places that are lesser "friendly" neighborhoods where others don't feel secure enough in the first place.
But, yes. That is an alternative consideration one should take if looking for a new place to live. Ask a close friend who is also looking for a place to live. Just make sure that you two are compatible.