One could envision a business built on providing a convenient wrapper for this strategy, where you sell young professionals functionally equivalent copies of the goods they purchased as college students, but charge three times as much for them. This would let you signal to the young professionals that they have "made it. (They'd probably also tsk-tsk about college kids buying things which cost X. I mean, sure, college kids don't have 3X, but isn't 2X the absolute minimum to know that it is safe for human consumption? Oh, college kids...)
I hate to say this, simply because I spend so much there, but you pretty much just described http://fab.com/ Much of what's there is just high quality versions of minimalist furniture and decorations you'd see in Ikea or any dorm room in America.
