25 is the loneliest number

Doesn't matter who actually speaks this sentence, suffice it to say that it is a politician running for re-election:

"...partnerships that improve our infrastructure are a good idea, but must be paid for, should not add a dime to the deficit and should be covered by..."

This politician chose the dime.  That is probably 1b for [insert coin of choice when demonstrating your fiscal bonafides].  1a is the penny.  Not far behind is the nickle.  But no one would ever say quarter.  Why is that?  Inflation?  50 years from now will politicians use the quarter more often in such statements?