I have it as well (the first edition). It's great for looking through (there are some great photos) but not so much reading. It seems to be all over the place instead of spending time on the history of video gaming. For the real, in-depth story, The Ultimate History of Video Games is great (as 2600 pointed out).
Oh and my copy of High Score is falling apart from opening too much. Not the sturdiest binding...
I also have Arcade Fever which is also fun to browse through.