They make excavator attachments that are perfect for that. One of the local concrete recyclers has one and it works surprisingly well.Or some bureaucratic hell wherein you can't get rid of at the dump, spread or bury old brick or CMU because it's "building debris" but you can crush it and spread it on a driveway.
I can see Tracyb having to deal with shit like that.
Or some 486 basement shit. Screen the fill you're excavating, let the rocks roll into the crusher and out the belt into your agregate pile. Would greatly reduce the mass that needs to be transported up and out of the basement.
I'm a cheapskate who'll happily do things the hard way and I couldn't justify a machine like that unless it was free.