We have never been without hoppers, we have APs now but in the past the hoppers were a must. In over 30 years of going, some years multiple trips a year, we have only done one park in a day once and that was an accident. We were in Epcot and just sort of wasting time, it was during F&G and I wanted to see Herman's Hermits later. We walked by a DVC booth and thought for fun lets stop (we were actually doing a split stay between a AKV 1 bedroom and a BW studio that trip). They promised us they could do the presentation and get us back in time for the early show as I wanted to hop over to MK and see Tink fly that night. Best laid plans and all, the presentation took longer (it was at BW, no tour just a video and a coke) and my son and DIL actually did end of buying into DVC. Anyway, by the time the whole thing was over I had missed the early show so when they dropped us back at Epcot the plan was to hang around for the last one. We hadn't eaten all day, it was hot and all three of us were a little cranky so we just went to Mexico and grabbed a table at the tequila bar, had a drink and some snacks and called it a night. I missed the show, it was our last night so that ship sailed, and didn't make it over to MK either. Other than that one time, we have never only done one park a day.