You know what else is important? Lots of disposable income. Not trying to say everyone in PR is poor, but there is a lot less free cash floating around to buy luxury goods than in, say, NY. Let me make it simple for you: economics.
Also your discount example is stupid. Apple has lowered prices on iPhones before the new model comes out and they most certainly sell like hotcakes.....
Be careful or you might sound really stupid on the internet. You have no idea about the spending culture here (I'm not even from here). Let me put it into simple facts so you can understand:
Puerto Rico is the place with the most cars per square mile in the world: 146 vehicles per street mile and 4,300 vehicles per square mile.
STORES:
Plaza Las Americas mall in San Juan is the most profitable mall per square foot in the world
Busiest Toys "R" Us in the world is in Puerto Rico.
The highest grossing Sears store in the World is in Puerto Rico.
The Kmart with the highest sales in the US is in San Juan.
(closed a a year ago but) The Radio Shack store in Plaza Las Americas mall was the busiest and highest grossing Radio Shack in the world.
The largest JC Penney store in the world (a full 4 stories) is located at Plaza Las Americas mall.
PR has more Walgreens per sq mile than any other place in the US.
There are a lot of high end stores and a high end store mall as well.
In short, people here spend a lot to try to look like they have more money than they do. Restaurants are always full and expensive. Reminds me of the middle east in that sense, but I bet that might be hard for you to understand.
BTW, Brooklyn has an average $44K income so IDK why you think the people around you have 'lots disposable income'.
Ohhh I did not know they announced the new apple watch and they did it since a year ago when the big discounts started to happen on the watch? Please send me the link for the new watch, I want to see the specs.
The watch is selling, but not like hotcakes, more like bear-claws.
Hope I expanded your knowledge!