Current school vs M7?

I got accepted into 1 deferred MBA program (Tuck/Haas/Johnson level), but how is the value of an MBA there weighed against the M7, especially in CRE? 

Only applied to that 1 school as a college senior because I was busy job-hunting most of the year, and wanted to weigh if putting down the deposit every year and eventual tuition money is worth it at all. No scholarship. 2-5 year deferral period. May pursue studying for the GMAT in future years to apply to M7 down the road but worried I will never get the chance once I start working full-time. 

Undergrad: (Georgetown/Notre Dame level), finance degree, 3.6 GPA, no GMAT score because they didn't require it

First job out of school, starting in a few weeks: Related/Hines/Tishman development