I think designers are going back to styles from the 50's,60's.70's..etc. because some of the things are pretty cool!
Just because the clothing went out of fashion for a while, doesn't always mean it won't come back.
I just wear whatever I like at the time, and it doesn't really matter what era it's from, as long as I'm comfortable in it.
Some of the headbands and accessories from the 1950's that are coming back now are kind of cute, but like I said, it really depends on what it is exactly.
xD