Good point on geographic diversity. However, Pell grants % are only a small part of the picture of socioeconomic diversity. 22.8% of Vandy students (more than 1 in 5 students) come from the top 1% (family income of $630k+ a year), while less than 15% come from the bottom 60% (family income lower than $65k a year). The median family income for a student at Vandy is an astounding $204,500/year. There is no getting around that Vandy is a school with a disproportionate number of wealthy students. It is actually the 14th highest offender for biggest positive difference in percentage between top 1% income students and bottom 60% income students.
Overall, Maryland will be a much more socioeconomically diverse school, slightly more racially diverse school, and much less geographically diverse school. It depends on what is important for the OP.