I have to agree with you, when a remake or remaster is done well it can be a joy to play. I've only recently played the Resi Evil 2 remake and although I never played the original, I really enjoyed it, and when they remastered Need for Speed Hot Pursuit that was a decent update. However, on the other side of that, I downloaded the remaster of Kingdoms of Amalur Reckoning and it was so disappointing. The graphics and gameplay were pretty much identical as far as I could tell and added absolutely nothing to the experience, it seemed they just put the PS3 game straight to the new gen consoles without any changes.
This is so true, there are so many remakes/remasters around now and it seems to be the norm for these rather than new IPs which is so disappointing, especially given the capabilities of the new gen of consoles. There are some which get announced and i then look forward to, like Dead Space (which i really hope they do a good job with), but I would rather have new games that give us a new experience that remakes