Decisions decisions...

Ok, I don't know what to do. A cruise up the Three Gorges will take 3 days out of my limited time in China. A lot of reviews have said that it was really boring after the first day. However, if I don't go now, I will never see the gorges because they are in the process of being submersed by the rising water levels from the dam. So, do I take three days to read and relax, or do I go an find adventure elsewhere? What do you think?