I couldn't afford it every month but some of the ones I did get I read again and again. I remember Abrashes articles and thinking that I had so far to climb. I still do but the thing is I don't think I've ever come across content like it since. Another one I remember was an article by Douglas Hofstadter about metaphors. It wasn't just tech but a way of thinking about everything. And Swaine's flames for dessert!