I have both original vinyl pressings of Workingmans Dead and American Beauty. The remastered CDs come quite close to capturing the warmth and vitality of vinyl. Although I haven't heard the remasters of the Dead's later releases, ie., from Shakedown Street through their last release, I've been quite impressed with all of the remasters I have heard. You should also check out the reissues of Garcia's solo outings. I just put on Reflections the other day and was amazed at how good it sounded.