I'm not against remakes because they've existed long before I was old  enough to understand the concept. In fact, I grew up on many remakes  before I knew they had in fact been remade, as I always thought of them  as the original and had no knowledge of the actual original.
Hollywood has been doing this for years and "yes" it is almost always  for a quick money grab but in some cases it truly is for the love of  film and not letting some things die with time. Peter Jackson's King  Kong comes to mind there, and he wasn't the first to remake it!  Re-introducing audiences and new generations to classics and cult hits  by updating them is a great idea on the surface. But as many have said,  it's about execution. So sometimes it works, sometimes it doesn't, and  sometimes Hollywood takes on a remake way too soon. With the technology  we have today, a remake means that movies that suffered from the sfx of  the time, can now get remade with grand intentions of actually improving  what are now clearly outdated visuals. King Kong, in 1933, was  groundbreaking for film...no one denies it helped pave the way for what  could one day be done with movie making and effects. 
Maybe it's shocking to think someone like Martin Scorcese would sink so low and do a remake...or wait, is it? No! He did it for the love of it. The desire to try something haunting and different. That movie was Cape Fear! And did anyone start a picket line outside of the studio over that?
So do we just make the remake debate about picking and choosing what can and cannot be remade? When do we draw the line over what's off limits or too soon? I feel like it only becomes a big deal when it becomes obvious it's just for money because Hollywood has no original ideas. I don't  think there's a real answer to that. I have a friend who was all crazy  upset that Conan the Barbarian was being remade, but he didn't  understand that Conan had a rich history long before Arnold's movie. So  no matter how the new film turned out, in his eyes it's a remake, but we  (movie buffs on the hype) know that's false on many levels. And this is  where the divide comes in the debate in the first place, and why some  people will never be satisfied with the idea of remakes. It's because we  are all too often ignorant or misinformed by Hollywood regarding source  material and adaptations. 
For example, no attempt was made by Universal to market The Thing  prequel as a prequel. Same title, same concept, and as far as the  uninformed are concerned, it's a remake! If you assume they are aware of  either JC's Thing or the 50's version. And that's where a lot of  backlash came from, much of it on here before we were even sure it was a  prequel. 
Then there's always the foreign film remakes. Let the Right One In, Girl  With The Dragon Tatoo...they all seem too soon. In 2002 one of my  favorite movies that year, and still to this day is Nolan's Insomnia.  And it wasn't until I watched the DVD that I found out it was a remake  of a Norwegian film only 5 years old. But would I have ever come across  that film? Hollywood didn't think so...so they option it for the  American-re-do. And the truth is that not just American audiences are  apathetic to foreign language films, but many countries all over the  world simply don't have access to them either, and will only see or  probably ever know the Hollywood remakes. But it sets in motion for the  original films, the books they're based on and all that applies, the  opportunity for them to be discovered. 
It's not your money, except the cost of a ticket, rental or purchase I  suppose, and Hollywood is gonna do it anyway. Pick and choose 'em as you  please to see them, support them or loathe them. It makes no difference  really because it's beyond your control, so why waste time complaining  about them? If you're against a remake..and I know I am (Red Dawn

),  then don't see it, if you think it'll strongly ruin your love and  opinion of the original. I'll either just laugh at it, or simply watch it  and critique it like any other movie that comes my way.
Sequels have done more damage than remakes imo. But it doesn't mean they should stop being made.