We Were Promised Hover Cars

I'm not sure how the gas prices are fluctuating everywhere else in the country but in Pittsburgh low grade is $1.95 and has been promised to increase by $.25 quite soon. Have we learned nothing from Back To the Future II? Where is Mr. Fusion? I thought cars were going to be powered by refuse? Weren't we promised these things? Hover boards, self sizing jackets, laceless shoes, wearing two neck ties, thumbprint doorknobs?