Hollywood and the film studios are finding it hard to come up with new and original content.
Similar to the South Park episode where Butters as Professor Chaos is trying to impose his evil plans on the town of South Park but every idea he has is not original and has been done by The Simpsons as seen in this clip. Being original is not longer easy with almost 100 years of films having been made coming up with something original is difficult to do. Even the critically acclaimed James Cameron masterpiece Avatar is not without some backlash of how it is not original. The main controversy is that Avatar is a rip-off of many other films/ comic books. With original content being all but gone many film studios are either making comic book/ novel movies, making numerous sequels and prequels, and remaking old "classic" movies.
Original movies have uncertain fates.
A new film runs the risk of being a flop and losing money, something studios wish to avoid, so they are taking less risky films that are likely to flop. This leads to more "remakes" as stated above which are already know so require less marketing for awareness and will already have a following/fans who will see the movie. Some film franchises continue to make sequels (Most horror films, Saw, Friday the 13th....)
Excessive remakes and sequels devalue the franchise.
Similar to most businesses a brand or franchise can be devalued which hurt the returns. But with Hollywood franchises don't have much staying power and remakes don't harm the sale of the original on DVD or bluray. With the lack of staying power it is understandable to "strike the iron while it is hot" so they can get the most out of franchise.
Remake the classics but at what cost.
Lots of movies are being remade most recently Nightmare on Elm Street which made a decent amount at the box office but many critics have said its not as good as the original and receiving bad reviews and ratings. The ratings don't seem to matter to the studios as long as it makes money at the box office but why not do both? Some individuals even on Twitter continue to say how Hollywood is destroying their childhood. There are numerous bad or average movies that can be remade that can be better then the original. The problem with remaking flops are they usually flopped for a good reason and a remake might not fix those reasons.
Should Hollywood continue to remake classics? Do you like having your childhood remade? What movie(s) would you like to be remade?