The cool thing is that they aren't destroying the originals and people can still enjoy those.
Wrong.
There is NOTHING cool about doing endless ****ing remakes.
Let me ask you something. Did you enjoy Inception? Think it was an interesting idea? A fresh take on things? Well, for every remake that costs $200 mil to make, that's one or two or even three good, original, new, fresh ideas NOT being made. There's a finite amount of money in Hollywood, and remakes, reboots, sequels, and adaptations are just the "safest" bets.
The only reason why guys like Chris Nolan get to make films like Inception is because someone, somewhere, took a chance on one of their original ideas (in his case, Memento), and it got widespread acclaim and audience enjoyment. He followed it up well with a "safe" reboot of a beloved franchise that he did extremely well with, and that now gives him the clout to say "Guys. Trust me. I'm gonna make you money with this film, but you've got to be willing to let me do my thing."
Everyone else, though, gets to make yet another ****ing remake/reboot/adaptation/sequel.
See, it's all about BRANDING. Name recognition. Hollywood knows that people have existing favorable associations with past films. They know taht people will be far more likely to give a film a chance if they already come into it positively predisposed because, hey, the original Escape from New York is such a cool concept, but man, how OLD is it now? Like, OMG. Totally OLD. But they know they've got a winning concept. People dig the original, so it's likely they'll dig the remake.
Same goes with titles like G.I. Joe and Transformers. I guaran-****ing-tee you if Transformers 1 was stripped of even just the names of the transformers themselves and didn't have Peter Cullen's voice, people would look at it exactly as the piece of **** film it is. But put Cullen back in and have his character be called Optimus Prime instead of Robolord One or whatever, and suddenly ZOMG IT WAS AWESOME!!!11!!!one!
As long as that keeps working, there is no reason for Hollywood to change it's formula. As long as people are willing to pay for marketing and brand names on films instead of demanding more, we'll get more of the same.