A 30hp Ferrari for 100k would still be a luxury item, very much so, assuming there'd be people that want them (which there clearly are for macbooks). Luxury doesn't mean "the best" or even "good".
Calm down. Apple products are luxury for a lot of people in the world. One doesn't become arbiter of what is luxury or not all across just by looking some local things and coming up with quick-n-dirty definition of it.
8GB of Ram is luxury?
Rolls Royce is luxury. Luxury means status. A gold plated car is luxury ( for some). It's a whole different league.
Macbooks used to be premium - better performance, better experience. Limited storage is not premium.
If Porshe releases a car with 30 horsepower, and asks for £100,000, we have a word for that.
A joke.