There are over 1,000 images of Buddha at Wat Pho. Although I didn't check, I think they're each slightly different. Can you imagine being the person to check and make sure each statue has a slightly different pose or face? Well, can't imagine it's so bad having to spend your time walking among the rows of beautiful Buddha statues in such a peaceful and beautiful setting.
Just being in the presence of all these Buddhas brings a certain level of sanctity to visiting Wat Pho. Even if you're not religious, it's hard not to be impressed by the beauty and detail.