CX bikes tend to have higher bottom brackets / crank for better ground clearance; they run the cables on top of the top tube, for shouldering the bike for running up hills; they use v-pull breaks to avoid mud build up...

If you aren't riding across baseball fields, parks and children's sandboxes, you're buying the wrong tool.

You also tend to "get less per dollar" on a CX bike purchase since it is a niche market design.