I'm interested in the United States Commemorative coins. I'm tempted to start collecting them in earnest and would like to know a bit more about them.

Here is a quote from "The
RedBook"
"Many modern nations have issued commemorative coins, and such pieces are highly esteemed by collectors. No nation has surpassed the United States when it comes to commemorative coins
The unique position occupied by commemoratives in United States coinage is largely due to the fact that, with few exceptions, all commemoratives coins have real historical significance."
Do you think this statement is true?
Commemorative coins in the USA started in 1892.
There were no commemoratives coins produced in.
1894-99 (6 year gap),
1901-02 (2 years),
1906-1914 (9 years),
1929-32 (4 years),
1940-45 (6 years),
1955-81 (27 year gap)
1985 (the last year no commemorative was produced)

Does anyone know why there was a 27-year gap from old commemoratives to modern commemoratives?
Since 1986 there has been at least one commemorative coin produced each year sometimes two or more.

Do you think there will ever be another year where none are produced in the USA?
In Australia, the year 2000 alone for example, they produced 150 different special coins above the usual circulating and Proof sets. There were 39 different
Kookaburra coins with differences in sizes or "privy marks". There were 53 different coins to celebrate the Sydney 2000 Olympics. and that still left 58 more coins for a variety of other reasons.

At what stage do you think producing these "special" coins becomes overkill?

In your opinion, would you like to see more or less variety/quanity produced in the USA modern Commemoratives?
I have noticed in the USA that the mintage figures for some coins have more Proof coins than Uncirculated coins produced. For Example: The 1986 Statue of Liberty half dollar for example has 6,925,627 Proofs and only 928,000 Uncirculated.

Can anyone tell me why more Proofs were produced?

Does the lower mintage make the Uncirculated coin more valuable than the Proof?

Do Commemoratives hold their value over the years?
I'm very impressed by the beautiful designs on some of the Commemoratives.
For example: In 1936 The Oregon Trail is a real beauty and I love the Art Deco Eagle on the Bridgeport, Connecticut, centennial.

What is your favourite USA commemorative design?

Are the commemortive coins hard to come by in the USA if your willing to pay
RedBook prices?

Is
ebay the best place to get them? Or are dealers able to source them regularly?
Thanks for sharing your knowledge on these very interesting coins.