I'm with maggiew; all the folks I know - except for the ones who ask my advice - know nothing about codes, AP discounts, etc. They were excited by the FTP - which they found out about in the Sunday paper travel section.
In the Unofficial Guide, they always print the FAQ; "If everyone is following your touring plans, won't that make them useless?" And they always answer that only a few percent of park attendees on a given day are following the UG. I'd suggest that there are even fewer people out there who know about boards such as DIS and who let codes and discounts guide their vacation; heck, some folks on DIS don't know that it's the start date of your reservation that dictates both season and 'child' status throughout the stay.
We are
not typical Disney customers; we use PS calculators, set alarm clocks for the break of dawn to get CRT, do a cost-benefit analysis of an AP for a given number of days. We book and rebook [and rebook...] to get the best rates. We think it is normal to stay off-site on arrival night if you get in late. Look at the
MNSSHP Central thread: dozens of people (me included) are all concerned about when do I arrive, how do I get my wristband, what about a PS at LTT, how do the clear the park, where do I wait, and so on and so on. Yet it must be possible to know NOTHING about MNSSHP (other than what's on disney.com) and be able to get in and have a great time.
So I suspect that a great deal of people call up 407WDISNEY (and don't know a CRO from a WDTC) get a price and book. Maybe they get a package, or go through a TA; but to think that "everyone" knows about codes and discounts is, to me, unrealisitic.