Speeding Ticket Duxbury

This morning I got a speeding ticket. I'm 27 years old and its my first offense (I've had my license for 10 years with a clean driving record). I was speeding (I'm sorry, minor lapse in judgement). Should I fight it even though I was wrong? The fine is only $105, I don't mind paying it I just don't want my insurance to go up. Again, I understand I was speeding, I made a mistake, it won't happen again (and had never happened before). What do we think will happen in court if I fight it? What would be the best defense? I commute about 1hr to an 1hr and 30 mins to work everyday. I've been driving these roads for two years and have never been speeding. Thanks for any advice! :)