Hmmm... well I think discounts aren't really discounts but a bait for people to buy it at market price. It's like telling people an item is worth x inflated price when it's actually worth less than that and you're selling it as a bargain when it's not kind of illusion. You didn't save a few cents from that 5$ dollar bargain, you spent 5$ for that bargain, that's a mental example on how I'd put it. As for airdrops, these feel more like a buy 1 take 1 purchase. It just gives me a similar feels for discounted price but a different label.