Comcast is buying slightly over 10% of all US broadband subscribers for $45B, so let's say the entire US broadband infrastructure is worth over $400B. That's some serious eminent domain.
True, but they're buying a business. A purchase that's strictly infrastructure would rule out the business relationships and contracts and would be significantly cheaper, especially given that the existing customers are free to remain customers (although who's to say what they'll do when they suddenly are exposed to the competition...)
