I buy CBJN about once every 8 months. It's worth the $13. I use it to scope house edge then do my own legwork for PEN. Very few people who do their own leg work on the best games are just going to share it with strangers. However, if you do some of your own, then you have something to trade via PM.
5 months ago I went to seattle. CBJN was invaluable for that trip. PEN is never accurate, but all the conditions listed were otherwise correct. That eliminated about 1/2 of the casinos in the area and allowed me to play some good games in the limited amount of time i had there. If you have an email address and a credit card you can have a copy of CBJN in about 30 minutes.