For giggles,
Standard for Success: Profits 2x or greater than budget
Each x represented by a smile
Star Trek: The Motion Picture 

$46,000,000 in budget (1979)
$143,224,565 in budget (2012)
$139,000,000 in profits (1979)
$432,787,274 in profits (2012)
Star Trek II: The Wrath of Khan 







$11,000,000 in budget (1982)
$25,760,629 in budget (2012)
$97,000,000 in profits (1982)
$227,161,917 in profits (2012)
Star Trek III: The Search for Spock 



$16,000,000 in budget (1984)
$34,811,262 in budget (2012)
$87,000,000 in profits (1984)
$189,286,237 in profits (2012)
Star Trek IV: The Voyage Home 





$21,000,000 in budget (1986)
$43,279,789 in budget (2012)
$133,000,000 in profits (1986)
$274,105,334 in profits (2012)
Star Trek V: The Final Frontier 
$33,000,000 in budget (1989)
$60,173,880 in budget (2012)
$63,000,000 in profits (1989)
$114,877,408 in profits (2012)
Star Trek VI: The Undiscovered Country 


$27,000,000 in budget (1991)
$44,828,015 in budget (2012)
$96,888,996 in profits (1991)
$160,864,496 in profits (2012)
Star Trek: Generations 


$35,000,000 in budget (1994)
$53,386,565 in budget (2012)
$118,071,125 in profits (1994)
$180,097,481 in profits (2012)
Star Trek: First Contact 


$45,000,000 in budget (1996)
$65,015,268 in budget (2012)
$146,027,888 in profits (1996)
$210,978,719 in profits (2012)
Star Trek: Insurrection 
$58,000,000 in budget (1998)
$81,099,227 in budget (2012)
$112,587,658 in profits (1998)
$157,426,910 in profits (2012)
Star Trek: Nemesis 
$60,000,000 in budget (2002)
$75,937,237 in budget (2012)
$67,312,826 in profits (2002)
$85,192,500 in profits (2012)
Star Trek (2009) 
$150,000,000 in budget (2009)
$160,112,811 in budget (2012)
$385,494,555 in profits (2009)
$411,484,311 in profits (2012)
Star Trek, as a movie franchise, had its greatest success in the 1980s. I think that people expected the reboot would have the phenomenal success of other rebooted properties, but I think this brief survey shows that it hasn't happened. I think the new film may get one

.
Here is a new article on the box office:
http://io9.com/whats-the-future-of-star-trek-after-into-darkness-510291083
After quoting another article which said that only 25% of people under 25 saw this movie, I read this in the above article:
That makes it a less valuable property to the studios, which really want to capture a young audience. And it also means the series has less of a future, as the people who really want a new Trek eventually die off.
That is a rather bleak assessment about the health and future of this franchise.