It is about perception. There are unicorns that started as solo. But, eventually they grew out of it. Weird though, there are so many shops out there run by solo people. They cook our food, they make critical stuff for us, but we don't scruitanize it. We let them into our homes :)

So, this is just optics. Land and expand, for example, is a way to force their arm. If you are already there then they can cry about it or buy the enterprise plan :)