We should be training for something. We shouldn't just be working out to burn calories. Your workouts should have a purpose. Why are you doing that exercise? Why are you doing that many reps? If the answer doesn’t help you reach your goal you may need to reevaluate your training.
Are your workouts helping you reach your goals?
The quality of your workout should not be determined by how sore you are. The quality of your workout should be determined by how you feel. Contrary to popular opinion, soreness is not related to effectiveness. In fact, sometimes soreness can slow progress. Slight soreness in muscles for 1-2 days can be normal but is typically only caused after doing something new and novel. Pain should never be felt in the joints. Wouldn't it be nice to achieve your goals without grimacing every time you sit down?
Do you measure the effectiveness of your workout based on your level of soreness?