Offensive to sellers but have people gone over the cliff on Car values

well cars, as with everything else have gone up in price much higher than what an equivalent car cost back in the 1970's. but to be accurate, $2500 dollars for a 1970 Duster that a person in 1970 gave a dealer would be equal to giving that dealer $16,500.00 today for a similar car factoring in inflation on the purchase power of 2020 dollars. so a person who gives mecum or barrett-jackson $30,000.00 for a restored 1970 GTX would be like paying $5000.00 for that GTX in 1970. to put that idea in perspective, a heavily optioned RS/SS 69 z/28 cost around $4100 in 69. a 70 Corvette 454 with several options cost around $6000 in 1970. that 1970 GTX with a Hemi and some other options would have cost someone around $4800 in 1970. so we are paying more money for muscle cars now but the money we are paying represents about the same "percentage" of money we would have paid when we were all back in high school saving up for our "dream car."
Not really the one thing that hasn't gone up equally is your wages so the purchasing power of your dollar is way less today which means you need to spend more of your life chasing after the money it takes to buy this stuff. You can't only look at one side of the picture .We , for the most part , are slipping backwards economically . It took one income to raise a family and buy what you needed 50 years back , now two struggle