Prices for items online are often determined automatically by computer algorithms, and sometimes they become outrageous. A couple of weeks ago, I was looking at a book which normally sells for +/- $20. Next day, I went back and the price had jumped to almost $2000. Next day, it was back to $20. I also had an item on Amazon go up $1.50 while it was in my cart.
Don't put too much stock in these fluctuations, and don't overpay.
All hail our computer overlords!
