I was calling the circuits "a deeper level of 'you'", and you seem to want to call it "not me, just part of my body". This sure sounds like an issue with semantics to me.

No, that's not my point of contention. Your use of the phrase "you just don't get it" implies missing knowledge, a lack of understanding. If you really just meant "your sense of happiness isn't serving its evolutionary purpose", why use such roundabout terminology? Would you also claim that people who use birth control and still enjoy sex "just don't get it at a deeper level"?

You don't have any problems with paying money to run in circles, but I do.

No, actually I do have problems with this, and find no thrill in gambling. The difference is that I'm not applying my preferences to others as a way to see them as defective versions of myself, and I'm not selectively employing an evolutionary justification for the subset of my preferences that have clear genetic benefits.