I don't think "one mans junk is another man's treasure" fits with the example of water in Disneyland but I do agree that it is another good example of subjective value.
And I guess the images must not be loading for just me 'cause I hadn't seen anyone else in the comments mention it. Oh, well, I guess I'll have to see what's up.
Right the cola versus water example though does fit, does it not?