I'm a non-trad college student, working on a geology degree. I'm a senior, but will have another year of being a senior before I graduate (May 08 hopefully).
I started college in my mid-30s, gung ho. Was gonna get all the As, probably because I didn't way back in high school. I did ok with this for a couple of years, loved that 4.0, until that awful B in Trig class. I was steamed about that for a year or so, but have since gotten over it. That was joined by 2 more Bs in my Gen Chem I & II classes. Glad I got all that chemistry stuff out of the way....
I guess I'm less obsessive about getting all As. On one hand, y'know, who cares what grades I get as long as I pass the class. On the other hand, if I get less than an A, maybe I'm just a slacker. Being of an advanced age I know that school work has to come before fun (mostly).
I guess I'm mostly concerned about GPA for getting scholarships (pays my tuition) and possibly grad school. But I suppose I don't need a 4.0 to get into grad school.
Sometimes I envy my classmates who have a mixed bag of grades and seem perfectly happy about it.