Where do we say this? We often turn down groups with good founders for some other reason (they can't quit their jobs; there's only one of them; their idea isn't quite there yet) but we've never turned down a group that had everything right because of lack of space.

they are only able to fund 10-20 every 6 months

At current rates we fund 42 startups a year. But that number has been increasing by about 50% a year.