I don't buy a lot of wide width fabrics, as there isn't a huge selection of them easily available. So I am often piecing 42" widths to give me what I need.
Quilts used as bedspreads for my double bed are easily 100" square, or larger. So yes, I can see 118" being very useful.
I don't have a queen or king ... though with my sizing for the double, I would think there'd be many that would be happy to get the 118". Of course, as I often find, the fabric colour/design itself may not be what is wanted!