CREATE TABLE "eastern_conference_semi_finals_vs_6" (
  "date" text,
  "venue" text,
  "visitor" text,
  "score" text,
  "home" text,
  "montreal_goals" text,
  "decision" text,
  "attendance" real,
  "series" text
);

Question: What was the average attendance when the decision was price and montreal were the visitors?
SQL: SELECT AVG("attendance") FROM "eastern_conference_semi_finals_vs_6" WHERE "visitor"='montreal' AND "decision"='price';