I agree with all of the above.

Quote Originally Posted by unclelouie View Post
<...> the ultimate prankster got played at the end. I think of it has beautiful irony. <...>

2) Walter might have been Roland's "oldest enemy", but let's face it... not his "greatest enemy". I think that Walter was obsessed with Roland. I get the feeling Roland rarely thought twice about Walter while on the journey. Walter was sort of an annoyance to Roland when he ran into him, but honestly...... during Roland's journey... throughout 7 novels... he runs into Flagg like, what twice? Walter died without the dignity of having ever gotten to face off with Roland after he told him to denounce the Tower.<...>
Perfectly stated.