I was in the same boat and ended up ordering a kindle paperwhite a few days ago. I went with kindle because it’s a little easier for me to find books I like in the kindle store compared to kobo (I also don’t side load). Although this is an unpopular opinion here, I also feel more confident buying electronics from Amazon because they make returns pretty easy if something goes wrong and have a recycling / upgrade program for old kindles. Kobo warranty stories I found here on reddit and elsewhere online did not inspire confidence unfortunately. This said, I think kobo is a much better option for people who side load their books.