If I was spending thousands on anything I'd certainly research it first.
Ironically, that's because people don't research first that they end up paying thousands (or should I say, thousands more than we do

)
Now there are several kinds of guests.
those who go on a whim and don't have a clue. (I'm quite active on a french board, and some first timers there didn't even begin to imagine how big "the park" was ... yes, didn't even know there were several parks)
there are those who get some information, but not accurate information.
I know someone (from forums) who came like "ok, I go in 3 weeks, and I just began to try and book restaurants, and I can't get the 3 restaurants we will eat at : Chef Mickey, Crystal Palace and Be Our Guest. Do you know when the reservations will open ? It's strange that they're not available yet ..."
well honey ... they're booked up solid and have been for the last 3 or 4 months.
This guest could not believe that ADRs were 180 days at ... and the saddest part was that they had paid for the
DDP, was staying 3 nights, and was convinced she had done enough research and would be able to "do it all" in 3 park days.
When I mentionned Fastpass+, she didn't even reply back, must have left the place thinking I was telling her crap ...
and then, there are US, and I consider myself lucky being one of those "in the know".
But more and more people seem to know about FP+ ... the real question is : "how many guests who know of FP+ consider a Captain Eo, Figment, and Spaceship Earth FP+ ticket a very good ticket ?" (not talking about the rides themselves but the usefulness of a FP+)