MS for 250k gets about 90+90+70+70+30 = 350k miles for about 5000$ about 1.45cpm
Factor in card fees of 1300 at most = 6300 for 350k is still about 1.8cpm at most
Along with a whole lot of benefits for anyone flying Delta
Never worth it for the value of the miles, but often worth it for the value of status