That's what someone said to me yesterday. The man's neighbors had hired me to create a set of three big canvases for a dining room wall, and until then it had never occurred to him that this sort of thing was possible.
The canvases in question -- each 40" high x 30" wide. My years of experience as a muralist meant that the size was not a challenge for me. The homeowners wanted an old-fashioned Italian type landscape with a medieval/Renaissance procession of figures, with five banners that would represent the family's five children and their occupations.
This is all oil paint, and the decision was made by the homeowners and their designer (the wonderful Mary Mackmiller of mackmiller design + build) to keep the colors low-key so that the art would fill the space but not overwhelm it.