I’m using a Kobo Aura 2 - 10" i think?. From my point of view less is to small. More can easily become to big. When i bought that one, i waited for months as i wanted to get my hands on such a big one. I never regretted waiting for it. Would it have been powered by free software it would have even been better.
Big bonus over other displays: It can run for months on one recharge without much backlight, wifi turned off.