It's incredibly costly to maintain even transposing it's orbit to refocus it's optical array on a star cluster 3 degrees outside it's current field of vision takes months of planning an costs a lots of it's merger on-board navigational flue thats why every shuttle mission has topped up it's tanks every mission. What i would like to see it it make the best attempt of a full spectrum instrumental survey both optical and other of as much as the universe as it possibly can before they finally shut it down an the results be uploaded to something like google earth.