Thank you for the replies. I suspect my dull Kodachrome slides are a result of poor processing and the fading to blue of my K-Mart slide film is just because it was a poor choice of film on my part.
I regret the choices I made on film and processing, and the problem with photography is that so often you get only one chance. These were vacation pictures containing family, relatives and friends, a number of which have since passed away. But at least I still have a picture, and while not like they were 30 years ago, they are far better than nothing at all.