Foam-Backed Carpet
The big difference between foam-backed and tufted, is that the tufted has another more stable backing
adhered at manufacture to add strength and stability, whereas the foam-backed has a layer of foam or rubber adhered instead.
The obvious advantages of choosing foam-backed carpet is the initial low-cost and savings on underlay.
Depending on the circumstances, i.e. wear due to heavy traffic, the cost-savings can easily be outweighed,
due to excessive use, so you must bear this in mind!