Question entrepreneurs

And they came to the conclusion that it is not very interesting startup just to get space for rent, even inexpensive.
Total, provided that the incubator provides a very competitive price for the lease of the workplace, but it puts a barrier on vyskoky input ( selects only a good start-ups ) that, apart from regular visits to the incubator investors may motivate startups to compete for the right to sit there?.

The answers and thoughts, plz, in a comment.