Okay, I'll play... I like my makeup and I use it on the daily. Maybe not every weekend, but just about every weekday I wear it, as I wear it to work. During my summer time off I don't wear it nearly as much, but I will often still put on mascara and darken my brows. Yes, even when I go out boating, it's just waterproof mascara then.....
So, I wear it..... the brands I use..... mostly MAC, Urban Decay, Clinique, Anastasia, Becca......
How much is spent monthly...... hmmm..... tough call..... maybe $100? That's tough though in that most of what I have I don't have to replace all that often. My blush lasts for years, same with my eyeshadows, yes I know that makeup has a shelf life. I only kind of pay attention to that with my mascara.
On the monthly I really only have to replace my foundation and my finishing powder. Blush costs $60, which is crazy but I only replace it maybe every year or two. Oh lipstick I like to change so maybe I'll buy a new MAC color once every month or two.
Hmmm..... so maybe $100-200 per month. Close enough!