My uni offers summer classes, but mostly for intro classes. This means if you transfer in or are a second year student, you have slim pickings in the summer off

My uni offers summer classes, but mostly for intro classes. This means if you transfer in or are a second year student, you have slim pickings in the summer offering. I would have gladly attended 90% of my classes in the summer had they been offered to students. Especially, those mid-tier classes that are only offered in Spring or Fall. IE: intro1 (Fa, Sp, Sum1, Sum2) -> intro2 (Fa, Sp, Sum1, Sum2) -> mid-tier class (Spring only) -> opens up 10 classes.