Uh. Not really.

Directional boring is one of the most expensive ways to lay cable. Just going underneath at standard two lane road in a residential neighborhood is something like $50-$100K.

Undergrounding utilities (esp in a metro area) runs something like $250K to $1M/mile. There are many, many variables that affect cost.

Underground cables are also much more susceptible to failure when compared with aerial cables. When they do fail, it's sometimes more costly to repair them if they are buried as opposed to attached to a pole.