Just did mine this weekend. Looked awful, I thought, but then I have never cut a fuel filter open before.
24k miles, 10% ethanol only (stoopid Colorado) I don't like the stuff.
(http://i115.photobucket.com/albums/n313/atokadok/Tiger/2013-07-28125736_zps019837da.jpg)
Did mine for my 24k service....partially plugged too. We have the 10% blend in the summer and 15% methanol in the winter down here in AZ due to our clean air legislation. Nasty on seals over a long period of time.