PriceZombie is no more, where else can I get prices like a stock chart?

I want to buy a few products from Amazon and their price keeps fluctuating. Is there a way I can get the historical prices of those products similar to how you get stock charts at Dow or Nasdaq? For example, MotoG closed at X amounts of dollars today, Samsung Galaxy Note closed at Y amount, etc. so that I can make a smart buying decision? The thing about prices is that if you have historical prices with you, you get a good idea of what the range for this product is, and whether or not you are paying a fair price.