Here's today's Space Review article
by Charles Miller titled "How the US can become a next generation space industrial power."
Along with re-usability, I've been wondering if horiontally oriented vertical launches would create a major cost-savings. If Boeings had to be stood on their tails for takeoff we wouldn't have an airline industry because the cost of such a delicate operation, from the required equipment (300 foot tall buildings, cranes, towers) to the days spent getting one set up, would be more expensive than the actual flight. Yet aiming an aircraft straight up once it's flying is trivial.