While robots will carry a certain array of sensors, imo a robotic mission has better ability to choose what to examine and choose what to spend time on, because

While robots will carry a certain array of sensors, imo a robotic mission has better ability to choose what to examine and choose what to spend time on, because the mission has experts that can think about these decisions for a week before making a call. The mission is under no significant time pressure when things go off-script. The time pressure of a manned mission is significant - this ability to make decisions quickly is only necessary because of the time constraints of a manned mission and the need to be careful enough to get back. This time pressure can be a factor in making mistakes and irrepairably damaging the instruments or hardware you brought. In one instance, Apollo crew has destroyed a camera they brought by accidentally pointing it into the sun for example. The flexibility of humans does not give any significant benefit if those humans don't have the time to use it. When every minute is planned for something, with some buffers to make mistakes, your ability to improvise only comes in to remedy your mistakes. And some are not fixable. The operation is exciting and all rests on the ability of 2-3 people and the preparation of dozens and their skill under time pressure. A robotic mission has months to remedy some fuckups and come up with workarounds. Some things are not fixable either. But a robotic mission has all the knowledge of a team of experts and is not put on the spot - they don't need to be as superhuman. The operation is comparatively boring and rests on the ability of dozens of scientists and engineers. They don't have to prepare for contingencies as much, they can analyze a situation, compare plans, simulate consequences (such as software patches, hardware operation) and act on them.