Ladies and gentlemen, let me tell you a tale.  It is the tale of the green, Black and Decker 1.5HP electric edger, circa 1994.  I get a little misty-eyed just thinking about it.  Oh, the times we had, merrily edging our way through the glorious summers, manicuring our lawn with edging so sharp I feared someone would cut their tire on it.  Yes, you were under-powered, but I knew you were just right for me.  What a team we were.