How a Working-Class Couple Amassed a Priceless Art Collection (2013)
mentalfloss.com
mentalfloss.com
Good on 'em, though an awful lot of people look on their favorite art styles as being more about successful self-promotion than "artistic merit" (whatever that's supposed to mean). But as any kind of advice it's sorta like "Be the guy who wrote Flappy Bird or invented Dogecoin".
It's awesome that they took what little money they had and used it to give even poorer artists the chance they needed to create. I'm glad it meant they filled up a house with art that made them happy, which doesn't have to be expensive. The fact that somebody else (somebody rich) also decided they liked it is awesome, if a little weird.
The real lesson is "buy the art you like". The Internet is full of creators who will sell their stuff for a pittance -- albeit more than you probably expect, if what you're comparing it to is five bucks for a mass-produced poster or $20 for a molded action figure.