Slight highjack this I'm sorry. The subscription route is the best idea if you buy it every month as you seem to do.
Having said that, and to my great embarassment, the May isue is the first copy I have bought, ever. Having had significant benefit for free using this site somewhat out of guilt I thought I had better buy a copy of the magazine. My shame was compounded futher when I began to read this excellent and helpful publication. Unusually for mags it actually has the right balance of articles with adverts, ie lots of articles. So for me the subcription route offers incredibly good value and delivery to my door. I can continue to use this site without a guilty feeling!