CREATE TABLE table_25658 ("Season" TEXT, "Episodes" FLOAT, "Series premiere" TEXT, "Series finale" TEXT, "Winning couple" TEXT, "Winning profit  (  AUD  ) " TEXT, "Host ( s ) " TEXT, "Judges" TEXT)

What season had a winning profit of $15,000?
SELECT "Season" FROM table_25658 WHERE "Winning profit ( AUD )" = '$15,000'
SELECT "Season" FROM "table_25658" WHERE "Winning profit ( AUD )" = '$15,000'