Does anyone know when all of these discounts started historically? Pre AK? Pre Studios? Pre EPCOT? I think I've usually used a discount over the last 10 or so years, but prior to that I don't recall. Growing up I certainly don't remember us getting any special discounts!
I know for my first 2 grown-up trips (1996 and 2001), we didn't have any discounts that I knew of. (We booked with
AAA those times and I have no clue - didn't seem like much of a deal at all.) But I didn't know too much on those trips at all, so maybe I just wasn't aware. In 2004 - I'm not sure, I was getting a little smarter by that point, but still wasn't really thinking about saving money.
After that we were FL residents, so I started using discounts. And now I'm smart.

But even today, I will still pay rack rate if (1) I'm out of DVC points and no DVC member discounts are available and (2) no other offers are out or work for me and (3) the dates I want to go are the dates I want to go. (Even though we own DVC, we still average a trip a year paying cash.)
I have never rearranged my trip dates that I already had planned in my mind, or with my family, to take advantage of any discount. It just kind of depends on what I have planned or not, and when they do/don't release offers. If I can get a deal, obviously I would take it, but if one's not available, we most likely would book anyway.