I had my first round of botox done in mid December - 24 units ($11/unit). Went back for touch up in early Jan for another 14 units - went back again this past week for evaluation and told injector that I was kind of disappointed to come back a third time - she was so sweet and did 14 more units but they only charged me for 8. She also showed me my 'before' pic of my forehead wrinkles which was way worse than I remember
I'm going to call my derm this week and try to get an appt for Retin A for these dang wrinkles - I don't think I can afford this much botox every few months!
ETA: if you want to do botox but are afraid it hurts - it really doesn't. Some of the places stung a teeny bit but most were pretty much painless.