First ...

to the CCF. Pleased to have you here.
You have found a great forum ... filled with friendly folks ... all who willingly share their knowledge and joy on the various numismatic topics.
There are some true experts here (not me) ... and we all benefit from their insights.
Soooo ... to your question ... appears that you are referring to what are known as Modern Commemorative?
The "Modern" era began in 1982 with the US Mint issuing a Commemorative half dollar in honor of the 250th birthday of George Washington.
Coins of this "Modern" era were minted in both UNC and Proof state ... but I am no expert on this portion of the fabulous commemorative series.
Do know that there is an equally fabulous Classic US Silver commemorative series ... coins from 1892 to 1954. I know a bit more about those coins and can share some knowledge on that series if asked.
I suggest as the others have stated ... do some research and find the coins that appeal to you ... purchase them for the joy they will bring as you hold them ... consider investment potential as a secondary concern.
May I suggest a good book as your first investment?
"
A Guide Book of United States Commemorative Coins" by Q. David Bowers. An Official
Red Book Guide. Will cost you less than $20 and my copy is dog-eared from use.
Best wishes in your pursuit ... looking forward to seeing what you come up with and sharing with you whatever we can to support your new collecting venture.
David
Take a look at my other hobby ...
http://www.jk-dk.art