Despite what it says in that thread, day use benefits do not transfer on resale at that resort (Grand Colorado on Peak 8 and Grand Lodge on Peak 7).
Day use benefits DO transfer on resale at Grand Timber Lodge though. Or at least used to - need to confirm. And you can get it cheap resale, even a ski week. Be aware of the ski week reservation lottery though - a major downside, and the primary reason why resale weeks are cheap there.