Plus the wide-spread use of CGI means you end up with mickey-mouse stuff like riding a classic motorbike around with gas that solidifies in an instant. Turns it all into a cartoon, with no real sense of peril and little emotional involvement with the characters.
The original films relied as much on the interaction between the characters as the special effects, whereas now, other than the names being the same, it feels too generic, too formulaic, too much action, CGI and ridiculous stories. And for the love of all that is good in sci-if, why do we need to see the Enterprise get destroyed every damn film!! (Or at least it feels that often).
Maybe I'm getting more discerning in my dotage, but I quite like a modicum more thought in my sci-if these days, not just bright colours, loud explosions, and chaos.
It would be great if we could have a new series of Star Trek that was actually more cerebral, more realistic and took things seriously. Where a 5-year tour took its toll on the crew, where things didn't always look pristine. Where the newest star base didn't just pop up with 20-million people and look like a dull sterile vision of an urban "paradise".
Something in the vein of the Battlestar Galactica reboot, but more isolated rather than having a rag-tag fleet of survivors behind you.
Anyhoo - I always watch the ST films and mostly enjoy them for a while, but I'm always hoping that they'll surprise me with how good they are... and always left feeling disappointed.
As someone above said, they're just not memorable any more.