I'm obsessed with new cars.
I'd trade a $50,000 car for a brand new $40,000 one the year after, and trade it again for a $30,000 brand new one the year later, and trade it again for a $20,000 one year after that.
As long as I get a new one every year or so, I love the feeling, even if it's less equipped.
Oh, I also love taking tons of pictures of myself.....
What's your obsession?