Cool book! How long did it take for you to find a copy?
Since 1993... No, seriously I'm not sure, sad to say. I should have been keeping better records all these years, so even though I have dealers/price for everything I bought, I never started putting a purchase date in my records until November 2008.
That being said, I can't say exactly how long it took because I wasn't targeting this one with too much urgency, just generally looking for issues that started with the letter "A" that I didn't have. This book was bought in early 2008, and at that point I had been after "A" titles since at least 2007, maybe longer...