Having the time to invest in a book is considered a luxury in the same way that having time to go to the gym is considered a luxury.
Oh please neither is even close to a luxury. Real readers know this well, as we all bring books to the bathroom. Sure you might not have the time to sit down comfortably for a couple hours of pure read time, but there is ALWAYS time to read, even if it is just while you make #2. And as for the gym, half an hour a couple times a week just ain’t that tough, and of course you don’t even have to go to the gym for exercise. People calling things like that luxuries are just excuse mongering laziness and illiteracy.
Their may be a few people who work so long and so hard that they never have any time. God bless them. Most people don’t read because they watch to much T.V.