Oh yes, I do save all of them in binders!!! Its quite a big collection now... even though my girlfriend always tells me that she'll throw them away next time when I am on a spotting-trip (she's just kiddin' )
Ya I save all of mine, mostly Airways, since the first monthly issue in march or april of 98. I also have quite a collection of TWA Ambassador, United Hemispheres, and a few other misc. ones like Lufthansa, Virgin.