Speak for yourself. I'm 32 and love them, My SO's grandparents, who are in there late 60's I might add, Love them too. If coasters weren't popular with adults there wouldn't be over 500 roller coasters in the US alone. Also lease we not forget that Universal studios and Islands of adventure both feature multiple roller coasters. Basically what I'm getting at is there is a market within Disney for more roller coasters and we should hope for more in the future to ensure the future success of WDW particularly with the 3 parks (DHS, DAK, EPCOT) that have a shortage of thrill rides.