They're ideal for regions that go through freeze and thaw cycles. And, it's a lot easier to repair small areas in a dry-laid patio than with a slab.
Paving stones can be used for driveways, sidewalks, patios, garden paths, even porch floors. As long as the underlying gravel and sand base is properly prepared, pavers can be used almost anywhere.
Web links:
Pacific Interlock Pavingstone.- www.pacinterlock.com
Calstone.- www.calstone.com