As Bill said, not many arranger keyboards are used anywhere , so why would expect to see them in a nursing home? I know a sax player/singer that keeps very busy playing at nursing homes. He brings his alto sax, an old boom box with a CD of about 100 backing tracks. He strolls around with his sax and sings ( without a mic) and the old folks absolutely love his show. He plays and sings his ass off with a bare minimum of equipment. Watching his show made it really hit home how talent/musicianship/showmanship and good people skills completely trump all the fancy gear.