When I feel like my life is full of drama, I watch this show and for that little while, I laugh at how ordinary my life is. I don't know if that's a good thing or bad, but at least it's given me an escape.
To be blatantly honest, 90210 is just a series of people sleeping with other people, and I haven't managed to finish it, but they probably had to end it because the script for it had run out.