"Little to recommend"
There isn't much to do in Baotou, as the Lonely Planet says. But it's a good starting point to get to the Resonant Sand Gorge near Daqi. Go to the bus station in Baotou, take a right out of the train station, and get a bus to Daqi. When you get off the bus in Daqi, there will be taxis waiting to take you to the gorge and sand dunes, where you can slide down the main face of the front dune, ride camels in tourist fashion, take the ropeway (chairlift) across the gorge or just wander about the dunes.
Baotou just seems to exist without really adding much, but it's a nice enough city anyway.