Same here with me and the color versions here. If and when I need to replace what I have now, or maybe a software update makes me want to throw them out a window or something, then I'll take a look at the new options. It's highly unlikely I'd get rid of my currently working and mint condition and known-good readers before that.
But that gives me time to save a few buckets as well. For now the Oasis is working well enough, just it'd be nice to get away from some of the paper cuts.