What does "a good five-cent nickel" mean?

Question

There are famous quotations regarding cigars, as follows:

"What this country needs is a really good five-cent cigar." by Thomas R. Marshall

"There are plenty of good five-cent cigars in the country. The trouble is they cost a quarter. What this country needs is a good five-cent nickel." by Franklin P. Adams.

A nickel is worth five cents, so I don't catch the point of Adams's remark. Would you help me?

Answer 1

A nickel isn't worth the same 5 cents it once was worth. Inflation has reduced the buying power of a nickel, or any other money for that matter, so that it is no longer worth the amount stamped on it. He'd like to halt inflation and increase the coin's buying power so that it is worth its stated value.