It's funny how different we all are! I have the 650 with the lighted cover from Sony--and I love it! I almost never take my reader out of the cover. I much prefer reading with the cover on. To me, the reader feels to small and insubstantial without a cover. Also, I haven't had the problem Marcy describes with the plastic clips becoming loose--but that's probably because I'm not taking my reader in and out of it's cover.
dordale