Same here, but it took three or four attempts. I kept on trying to start from the beginning and got bogged down.
I've told this story before, but... the third (or fourth?) time I followed the link from xkcd, i saw this;

And sure enough, I had to know how they got there. So I started reading backwards, watching the story and characters ... undevelop? And following it forwards as well, and at some point I went back to the beginning, trying to tie what seemed to be such radically different comics together.
I met in the middle somewhere, right around "the talk". I was emotional for days. My wife asked me what was wrong, I was never really able to say. How do you explain to someone who has no regard for an art form how much it moves you? It's a little like when she speaks to me about dance performance - I really just don't get it. At an intellectual level, sure, but not in the feels.
So my second "Dammit, Jeph" entry - because it still leaves me grinning whenever I look at it - is speed beer, AKA "
WHEEEEE!!".
And yes, I have the print.