Are sales online also in stores? Read description?

There's a sale on Nikon $100 off and they don't ship to where I live, so do they have the sale in a place where they sell Nikon like Sears?

Any sale you run across online is only good for that company. If you saw it on Sears website then it's good in the store unless it says otherwise. It will not be good at any other store unless they price match like Walmart does. Be aware that Walmart does not price match online stores, only local sales adds.