We have skied Heavenly years ago and never went to the other resorts near by. I believe the 2 that are close are Sierra and Kirwood. We are staying at Harrah's in January. Me and my son are blue run skiers and DH loves the black runs. Is it worth it to go and check out the other ski resorts. We will ski 5 out of 7 days. Does the ski pass to Heavenly also work for the other resorts?