Because "thrusters on full" is a dull ass final line to finish off decades of Star Trek. Oh sure I used my apologetics ray gun and made up all kinds of reasons why it was meaningful but I never really believed them.
"Yes, but at great personal cost."
It's interesting that if Nimoy dies before the next film his last line in Star Trek will be a reference to Spock's death.
"Yes, but at great personal cost."
It's interesting that if Nimoy dies before the next film his last line in Star Trek will be a reference to Spock's death.