I am interested to know if any are commuting on a fat bike, not so much in snow (though I am aware this is where they excel) but on roads in dry or relatively dry conditions (I live in Phoenix, AZ)? I am currently commuting on a Trek 520 touring bike which I absolutely love and has served me well for not only my commutes but general pleasure riding, but I will be retiring, likely the end of this year and my needs will be different. We are planning to fulltime and travel in a 5th Wheel and I will be limited to 2-bikes, mine and my wife's, so getting a second bike in for me is out of the question, but considering where we will be traveling and the kind of riding I will be doing, a fat bike has a lot of appeal for me. So I am just wondering if any others are commuting on paved roads with a fat bike and what their thoughts are as I may consider parting ways with the Trek and getting a fat bike? I know the rolling resistance will be higher on a fat bike. Thanks.