900k++ is pretty ridiculous for Sanur. While I know it’s a hotel and it’s marked up, anything above 600k is too much.
I’ve seen lots of shops with massage services in that area for under 200k per hour. As I live in Indonesia part of the year, I pay 160-190k for 2 hours of great deep massage, and they come to your hotel or house in Jakarta or Bandung. I need to see if there is a similar great service in Sanur.