I bought a colour Kobo. Super responsive by comparison. The colour isn't wonderful, I like that it's there.
Also, physical buttons! Such things are only available on the most expensive Kindle, I didn't realize how much I'd missed them.
Or the old ones you can get for $10 on eBay :) I use exclusively old models that have physical buttons for Kindles because they're just insanely cheap and still perfectly reliable (the battery too) even a decade later.
I have the newest paperwhite (prior to the one announced here) and it is incredibly fast and zippy compared to the kindles of old. And they claim the new one is even 25% faster.
I went through a phase of buying used 4th gen ones off ebay so that I could have physical buttons to turn the page, but within a couple of months they would always end up up with cracked screens
They would be stored in my bag next to my laptop (and in a case) but at some point I would end up pulling it out to read and find a cracked screen
I think I went through 4 of them before I called it quits, my current paperwhite is still going strong (just no buttons sadly)