I started playing RPGs in 1981 and played up to and into college for a few years. I played B/X, BECMI, AD&D, Traveller, Star Frontiers, Gamma World, and many other systems. My favorites were B/X and AD&D. I stopped playing in college and took up miniature war games. I started playing again a few years ago and have been playing Pathfinder. I did not care for 4E. At the beginning of 2012 I decided to play some of the retro games, C&C and LL.
I recently bought and read DCC RPG. I can tell you I read much of the rule book over about a week and was amazed. I remember the sense of wonder I experienced so long ago when I initially read the Basic Rule book out of my red box. That is the same way I felt when I read DCC. I have not played the game yet, but I am preparing to run my group through a DCC campaign. The book is visually stunning with so much wonderful old school artwork. I enjoyed distinct flavor each character class represents. DCC is truly a homage to Howard, Michael Moorcock, Fritz Leiber, and Sword and Sorcery in general.
$40 is worth the price if you are a fan of OSR, Sword and Sorcery, and great game mechanics. Even if you never play the game. On a side note the game seams like it was made to House Rule for those who like to make small changes to their games.