Just check the 9to5Toys page, they post sites that have sales on iPad Pros all the time.
I think it's a little different with the S7. They do the BOGO sales to increase initial demand for the product whereas the iPad Pro's frequent minimum $100 off sales seem to indicate the product was priced too high to begin with.
Apple has to realize that it has lost some of its magic. It can't just overcharge for a product without corresponding value to the consumer.