It's no secret that repetition is a big part of Hollywood. When something goes good, they capitalize on it and soon the theaters, DVDs and streaming sites are filled with the same genre. Their idea is that if it worked once, then it will work again.
That's why when Twilight became popular, there was a sudden resurgence of vampire movies and television shows. This also goes true for movies that were hugely popular long ago and are now getting a facelift through reboots. Many of these movies that are getting reboots are modern day classics.
The Thing was a 1982 horror classic starring Kurt Russell. It didn't have the best special effects because it didn't have all the computer technology that we have today. It was all about latex, pulleys and wires.
In 2011, the movie was rebooted for modern audiences and it was horrible. I guess for audiences that had never seen the original, the reboot was good. As someone that grew up watching the original on everything from VHS to late night cable, the reboot was a pale comparison to the original. I guess not all movies suffer from a reboot, but many times purists can stand people trying to mess with perfection.
For people like me, the originals were good enough. I can watch The Thing and still love it for what it is: a good story. A reboot tends to take what's popular today and force it into the movie. There's more blood, more guns, more bang, but the story is lost.