Your depiction of yourself during the program has changed markedly since you started, from 'standing in the back of the room for 8hrs' to 'I was up front asking questions the whole time.' I still think that if you couldn't manage to find any value in the experience, you weren't looking to find any. My main beef on that front is that a lot of activities can be only box-checking, if you treat them as such...but they don't necessarily have to be. I think the surgical program is a great example of that. If there weren't a set period of time, I'd still be taking shifts, because I never felt as if I stopped getting something out of it.
And no, it wasn't simply that everything was new and bright and shiny. I've had plenty of exposure as well; I highly doubt that the difference between us is simply that you've seen *soooo* much more than me - in fact, given the hours you listed, I know you haven't. It's just that the surgical internship allowed me to see things that are exactly what interests me the most. I didn't run out of questions during my shifts, I didn't start finding the surgeries boring, etc. That doesn't mean I'm naive; it means I found it interesting. Those are not equivalent. Similarly, I never got bored with scribing after 1.5yrs of F/T. Sick of the low paycheck and long commute? Yes. Sick of the hospital portion? Nope. I still found it energizing, and hated leaving. I understand what it is you think explains my interest, but that simply wasn't it. I wasn't interested because it was new, I was interested because there was always something more to see or hear or discuss. Conversely, I got sick of both of my hospital volunteering positions because there was nobody available to help me learn more about what was going on. I was on my own, and after a while the novelty of examining adorable newborns wore off. I wanted to ask questions and see something beyond one part of the process. So I get what you're describing...it just doesn't apply in this case.
Furthermore, no...I don't think that you being accepted means you know any more about this ridiculous process. I'm having a 'rough cycle' (though I wouldn't actually describe it as such) because 8yrs ago, before I ever even considered going to med school, I didn't gaf about grades and was a B student who partied. That's it. Sure, you've got plenty of ground over 8-yrs-ago-me, but so does current-me. So please, get off your gorram high horse about having been accepted when it is absolutely irrelevant to the discussion at hand.
Finally, I'm not sure how saying "I want to learn Spanish to use with future patients" is a bad thing. I worked in CA hospitals near a rural area. I saw first-hand exactly how much of an impact this sort of thing can/does have on patients and their treatment, and I decided it was important to me to take the time to become fluent. I guess I don't gaf if that makes me a SJW.