Why not? People buy what they want for their personal reasons. A few years ago I went to the Philly Bike Expo. The guy who built my custom ti road bike had a booth there. One of the bikes on display was a 1x commuter with a rear rack and fenders ordered by a customer. More power to you if you can afford a custom Engin ti solely for commuting. The frame alone (sans fork) was probably over $4K.