Dessy BM dresses

Does anyone know if they have any lines around 100 bucks each? Probably not, but I figured I'd ask. I love their dresses but I just want my girls to not spent too much because I know what that's like.
Also, if I want to go look at David's Bridal without them, should I make an appointment? I live right near one but I haven't been there and I'll probably go look with my mom before I let them know what I'm thinking.
Thanks!