Yeah, $100 a shirt is fairly competitive with other fashionable brands.
I end up buying more expensive shirts just because I don't feel as bad about having to have them altered. My arms are really long and my neck/shoulders are really broad relative to my height, so even slim or "extreme slim" dress shirts have a tendency to billow out of my pants unless I have them taken in, and I always have to have the arms slimmed significantly as well. When you spend that kind of money to have the clothing altered, you might as well spend a little extra to alter nicer clothing.
CT definitely offers some of the best deals. Kamakura offers extremely high quality shirts for $89, though. Bonobos is just not high enough quality to support the hundo price point.
Bonobos sells itself as an affordable yet fashion-forward brand, so perhaps you're just not the target consumer?