I think 80's used to be smoking too.
I was in a 70's building as well. I liked it, but some might think it was a long walk, it depends on the route you take, and what you think is long. I thought it was just fine. We were more by the back by the lake.
I agree, it seemed like the POP bus lines were always the longest, but they moved fast and when times were busy they sent several buses at a time. I would suggest leaving ealrier, or not immediately after fireworsk or parades if possible. That is when most want to leave it seems. We stayed till closing at MK, while alot left after the fireworks and the park so bare. We walked on so amny rides, and then the bus lines had gone down quite a bit too.