This site's own bonus-guides section addresses this directly: their listed values are the brand's own stated prices, not independently appraised by us. We have not reviewed the contents of these guides ourselves.
Rather than presenting the $67, $59, $67, $77, $49 and $39 figures as confirmed market value, this site states plainly it hasn't reviewed the guides' contents or independently appraised their worth — worth crediting that honesty over an unverified value claim.
Worth treating the six bonus guides as an unverified extra rather than a factor in your core price comparison between package sizes, since this site itself has not reviewed their content.