PRS-600 What can I do with my PRS-600 now?

I've been using ebook readers since I got my PRS-600 for Christmas shortly after they came out. (I wanted the original two Christmases before that, but money was tight.) I loved it. After a while, though, I got sucked into the Amazon ecosystem and ended up with a Kindle 3. I now have a Paperwhite that I like, but don't love.

I dug out my PRS-600 over the weekend and I really love the hardware (except for the really reflective touchscreen). The software, well, not so much, and I haven't gotten the hang of using calibre to embed the fonts I want.

I use calibre to convert ePub stuff to MOBI so I can send it to my Kindle anyway, so being able to read ePubs isn't really a killer feature for me. What am I missing about the 600 that would make it compelling to use today? Should I just retire it back to the box-o-junk and pull it out to reminisce every now and then?

Is anybody still using a 600 regularly having tried and liked Kindles? What do you think makes the PRS-600 great?

(I'm not meaning to crap on the 600--I genuinely did love it. I still think the hardware is really elegant, and feels much more well-made than Amazon's stuff ever has. I'm just trying to find a use for mine.)