Over time, the problem of maintenance overwhelms usability. Like the street view, but to a greater degree now, comes the problem of keeping those googlebytes of data updated ahead of looming obsolescence. Cool I can go in a store and look around...but what updates store change or - worse - closure?

ETA: puzzled by downvotes. Satellite views can be updated on a regular basis with relative ease by a largely passive system, and what's imaged is rather static; street view updates come with re-driving every road which ain't easy or cheap and may need more frequent updates; interiors change even more often and imagery/data cost much more per byte to maintain. Sure, interior views are cool - what's the cost of obtaining, and more important maintaining, them?