My opinion has gone from, "unnecessary niche bike" to, "if I were swimming in money," to, "maybe," to "N-1". I picked up a little used 2018 Kona Rove NRB (pic below is not mine, but color and model of mine) over the weekend. I'm selling my road bike and touring bike. So, I'm going from 9:zero:7 fatbike, Miyata Twelve Hundred rebuilt with Campagnolo road bike, Trek 720 touring bike, Salsa El Mariachi trail/commute bike to the Rove, 9:zero:7 and El Mar. Actually, I thought the same thing about fat bikes initially. Then my sister-in-law got me on one and I was 7 years old again. I'm now on my sixth fat bike.