It is worth the rewatch, and I benefitted from binging a number of episodes at a time; it made the story much more coherent, compared to the normal TV breaks over the summer and mid-season, not mention NFL interruptions. And I got chills down my spine every time I heard the words, "And now, the season finale of Smallville."
I have bought the Smallville Dvd box two weeks ago. I have to watch the last episode of the disappointing show "the haunting of Bly Manor" and then I am going to start with the Smallville rewatch