IMHO the E readers will soon become obsolete due to the fact that the tablets are ereaders on steriods and so much more versatile, by next xmas the price are ereaders will bottom out. I would think you would get more bang for your buck by getting the tv.
I have a TV in my sewing room and though I don't "watch" it while I sew, I do listen. I can get music stations on cable too which I often do. Put on some classical and start FMQ...boy I've got a nice "job"