[katinka]

All three of these readers have the same CPU and RAM, the only difference being the slightly better contrast which seems to increase with every model, or I'm I wrong?

Even though new models, being new, makes me want to buy them, I think the only reasonable reason to actually swap my HD for a BW would be if the response time is significantly better on the BW. So is it?

Doing anything on a clara HD, navigating the menu, page turning and so forth, is quite slow comparing to a LED, android phone, but I guess that is expected.