I have to disagree. The Kardashians/Jenners have been in the forefront of pop culture for for a lot longer than we all would have thought when their TV show first came on. Kris has set them up with cosmetic and clothing lines that will continue to generate revenue and Kendall and Kylie have started modeling AND a clothing line with Pac Sun. If anything Kendall and Kylie are just now coming up and their Kardashian sisters havent even begun to fall yet.
Everyone wants to say that their 15 minutes will be up soon but lets be honest, they are still getting it and their 15 minutes keep getting longer and longer. So many people want to believe so badly that the Kardashians will go down in flames and they wont. At this point its almost impossible for them to end up broke when they have so many public relations and business ventures. I honestly feel that the Kardashians/Jenners are kinda legendary in how far they've come and how they managed to take over the media.
The money coming in for these Jenner girls will only get greater as time goes on. Even if against all odds, they end up broke, they can fall back on Bruce's money who has a net worth of over $100 million.
At age 15, Kylie Jenner has a net worth of $1 million and Kendall $2 million. They arent even legal yet and they made this kind of money. They are not running out of steam at all they are coming up!
More power to them I say! Keep the money, cars, and clothes coming!