Re: Enterprise, Star Trek Falling On It's Own Bat'Leth!
Studio/TV execs don't always like to take risks. If X has worked before they think it'll work again. Though what can happen is the audiance has moved on from X and is looking for Y.
If a studio/TV exec takes a risk and it works everyone else copies it.
On the continent of wild endeavour in the mountains of solace and solitude there stood the citadel of the time lords, the oldest and most mighty race in the universe looking down on the galaxies below sworn never to interfere only to watch.