What was your hourly wage in 1975?
I've tried to search, and I can only come up with anecdotal evidence that WDW started its entry-level CM's at the federal minimum wage of $2.10 an hour in the mid 70's.
A base 1975 Chevy Vega with no AC and a 3 speed manual transmission and only an AM radio had a stripped down sticker price of $2,899. And that was truly a miserable car. But it would cost you 34 weeks of salary to purchase that base Vega. Or, at $2.10 per hour and a Fed interest rate of 9% in 1975, with one week of wages used on a car payment each month it would take you four years to pay off the loan on the Vega.
Full Disclosure: In the late 1970's I had a friend who drove a Chevy Vega. It was a total piece of crap, even new. A year or so after he bought it, it stranded us in a small town on the Oregon coast, the radiator blew up as I remember. The local auto parts store couldn't get the parts in from Portland for two days, so we sat around at a cheap motel in the rain cursing anyone who has ever worked for General Motors and anyone associated with Chevrolet (including Dinah Shore) until it could be fixed and get us back to the city. His next car was a Honda.