I didn't mean you're too serious. Just that you seem to care a lot.
Philosophy was great for me. I actually enjoyed the challenge of it--something I couldn't really say for most of the other classes I took. Looking back, it was definitely worthwhile--not in any financial sense for sure, but I'm glad I did it.
I don't read much philosophy these days. Much of the classic stuff seems dusty to me and contemporary philosophy can be really densely academic. I check out some stuff every once in a while or go back and read some of the classic stuff (sometimes just for a laugh, like "holy crap, Kant is a pretentious windbag!"). Thomas Nagel is a contemporary guy that I really like. The best thing is just knowing smart people who like to talk about the same stuff as you.
Are you familiar with Bertrand Russell? He is a thinker I really admire. I think you will love his essay, "Why I Am Not A Christian." The entire text is right here...
http://www.positiveatheism.org/hist/russell0.htm