There is no reason not to.
I’ve got one and it makes me happy. Stick that in the simple joys category. As to size, unless you plan on burning your Harry Potter and the Order of the Phoenix book on tape/CD, even the small size has enough room for 3-5 days of 24/7 music depending upon quality.
(I admit to coveting a larger size now just for the above reason and future drives from Rochester to Atlanta).