You're also fooling yourself if you think a print guide will suffice. Stick with electronic books and newsletters, as they're more easily and cheaply guild wars 2 gold updated. Most top guides offer free lifetime updates with free subscriptions to their electronic newsletters.
There have been some guides which have gotten hundreds (if not thousands) of accounts banned by teaching unethical techniques to gold making and packaging bots or hacks with their "guides." Good, quality guides teach such efficient and useful techniques that getting banned will never be an issue.
Why pay a monthly subscription for a wow gold newsletter when the best guides provide detailed e-books with a lifetime of free updates and a free subscription to their newsletter? Why pay pro gold farmers for wow gold on the web when you'll just enter the game, spend it, then need to buy it all over again? Silliness.