I have tons of room for electives and I'm filling them up with math classes. I can see how complex analysis and even abstract algebra would be helpful, but would real analysis be helpful for research in the future? Other than getting a deeper understanding and proof based re-introduction to calculus, I don't see how it would help a physicist (especially when one can learn these proofs in their own time). I'm interested in pursuing condensed matter physics or physical chemistry in grad school, and maybe even on the theoretical side. I was thinking maybe real analysis would be useful for getting more practice at mathematical writing for publishing papers, but is that about it?