It is for any corporation that has quarters to report to wall street. I used to sell capital equipment ($10-50K invoice amounts) for Snapon Tools. The specials that would come down the line two weeks before the end of the quarter would be ridiculous. I once sold a $30,000 machine for $16,000 because I could close it in June (not July) and the buyer was paying cash and would take a demo unit off my truck. I got the sale, buyer got a discount, everyone above me got some bonus, everybody was happy. Then the same thing happened 2 weeks before the end of the third quarter just thirteen weeks later - suddenly almost all the appliance sized machines were half priced to clear inventory and make numbers. I sold 33 A/C machines in 3 days. That should have taken 3 years to move that many units.
So whenever you are buying something from a corporation, try to figure out if they are ahead or behind in sales. They can get really desperate to make the numbers. If the product is selling faster than they can make it, all bets are off. That popular stuff stays a full retail. Nobody will discount since production is limiting their sales, not demand.
Also, understand flooring costs. Often a dealer of expensive stuff like cars, trucks, motorcycles, RVs etc gets a line of credit from a large bank for "flooring". This is the roughly 1% per month fee the dealer pays to the bank for interest for the line of credit. If that unit has 12 months of flooring charge against it, people can get really good deals. They just want to clear stale inventory and will take a loss to do so.