I am a big reader of guidebooks. I have at least half a dozen on CR alone and have perused many more. I agree that the Moon book is the best one on CR. In fact, I liked it so much I got a second updated edition. The Lonely Planet is also very good. However, I also agree that the prices for guidebooks are ridiculous.
For those not willing to pay the price, or who would rather save their hard-earned money for other things, there is also a lot of info available on-line for free. And for those too lazy or busy to even do the search, just use the links that I have provided in this thread
http://www.costaricaticas.com/phpbb2/viewtopic.php?t=2483&highlight=guide where the subject of guidebooks was thoroughly discussed. If you scroll down to my 2nd post you'll find the links I provided to a variety of sites where big chunks of the guidebooks, including the first 100 pages of Moon, were available free on-line.
Aw heck, these are great links guys, here they are again:
http://www.photo.net/cr/moon/cr-handbook.html.
http://www.lonelyplanet.com/destinations/central_america/costa_rica/http://www.costa-rica-guide.com/index.htmlhttp://www.frommers.com/destinations/costarica/I have to add Paco's link to my list (very good site!)
http://www.costarica.com/and especially for DTA, the Frommer page with links to 9 different cultural attractions in SJ:
http://www.frommers.com/destinations/sanjosecostarica/0042010029.html