The only new stuff I like is from older bands and artists. I still buy new Iron Maiden, Slayer, and Metallica albums on the day of release, and heck, I just bought the new Motorhead on Sunday. I like Ray Davies and Paul McCartney's recent solo output as well.
The newer metal bands to me are more interested in heaviness, virtuosity, and screaming and lack dynamics and songwriting. Modern rock just seems run of the mill and mid paced to me, and has since the mid-90's. Hip-hop and country? Bah!
I'm sure there are some good modern bands out there, I just haven't heard much of it. I'm in my 30's now and have so much music that I just don't have the energy to keep up with what's going on now. I'm too busy catching up on all the bands and artists I already do like. It sucks, but hey, that's life, and I notice certain posters very active in 60's and 70's threads just went AWOL in the 80's and beyond. It's human nature, I guess.