Detriment #2: Scientologists hate you.
Detriment #3: Movies about things like "multiple personality" are no longer believable.
Detriment #4: People think you make the same amount of $ as an M.D. You don't.
Detriment #5: People expect you to be empathic all the time. Even your family.
Detriment #6: Extremely bizarre behavior no longer shocks you - in fact, it starts to look kind of normal after a while...
Detriment #7: At some point, one of your patients will die. Either by suicide or something else. But it will happen. And it will suck.
Detriment #8: You are less likely to know when you, yourself, need professional help.
Detriment #9: You will not believe in God (over 90% of psychologists report that they do not).
Detriment #10: You will love every minute of it.
Psychology is a great profession. I can't imagine doing anything else. I love my job, I respect my patients, and I value my colleagues. If you are lucky and determined enough to make it through school, it will be worth every penny.