Similar to @rosalita, I have a Forma and a smaller reader (a PW4) that is more for carrying around. I prefer reading on the bigger, nicer Forma screen whenever I have the option. It's not just the size, the lighting is better too because Forma has the natural lighting feature.

The question is not whether you'd prefer the Forma screen over a 6", I bet you would. The question is more like, is it worth ~$280 to you for that modest upgrade in the reading experience? And that's just for the 8GB version, the 32GB is another $50. For me it was. A lot of people though have a limit of how much they're willing to spend on a dedicated e-ink device, when you can get Android tablets for less.