Undergraduate research experiences are beneficial students. However, the over-subscription of traditional research opportunities combined with other barriers prevent many students from participating. A promising alternative is a course-based undergraduate research experience, or CURE. CUREs are shown to have similar outcomes to traditional research experiences, while reducing the barriers to participation and providing an authentic research experience to an entire cohort of students. Within STEM disciplines, physics has been identified as underrepresented in CURE implementation. The broad scope of our work is to identify the challenges and opportunities for creating and sustaining physics CUREs. As a first step, we conducted a series of interviews with physics instructors from multiple institutions to collect faculty views on implementing and sustaining CUREs. We present the results from the analysis of these interviews and discuss barriers, learning goal priorities, and potential CURE benefits identified by instructors.