Not a fan of remakes but I think as you get older, you start to see them forming a pattern for each new generation. Where I think they can have particular relevance is when they have evolved to reflect the dangers or topics of the world as it is now rather than it was then.
I think the problem of 'remakes' has been exacerbated by the number of reboots (I'm thinking Spiderman as a example...it's not that long ago that we had the Toby McGuire versions and now we have a reboot in less than a generation).
As a consumer, I tend not to go to cinematic releases of reboots or remakes and I tend not to buy them on DVD or Blu-Ray. They would have to be very special to get me to part with any cash and, in my opinion, once you take away the crash, bang, wallop, look-at-the-pretty effects aspects, there's not a lot going for many movies coming out of Hollywood right now. I look more and more to foreign shores for my viewing.
My personal favourite remake is Werner Herzog's take on Nosferatu. Well worth a watch.