I really like the rotating screen and back light, also its more water resistant then the classic. to me it was worth the extra $16 bucks. If it isn't too much of a hassle I'd exchange it.I got a classic permapen for Christmas. I have not opened it yet. I was considering calling and asking if I could exchange for the new model. (obviously pay the difference in price)
If you were in my shoes would you try and exchange for the newer model or just use the classic thermapen?