Usually, not always, but usually, manic behavior is like a rush and you get a gas out of spending or whatever. You lose your inhibitions and you don't care it just feels so good to do what you are doing. You get random ideas that seem like good ones at the time, you can feel powerful, awesome, superior, the best ever....it's all related to extreme elation is what I'm saying. Those emotions usually go with manic episodes. Of course, this is not in all cases, but maybe this can give you some context.