Kind of like the Modern Commemorative series, the Mint is chasing $ to the detriment of collectors. I don't think we need ANOTHER variety of the same coin.
There are way too many commemoratives issued every year for me to sustain any interest. I think the last commemorative I bought from the Mint was the Wright Brothers coins in 2003 (only because I went to high school 25 miles from Kitty Hawk).
Proof silver eagles were a one coin a year set until they issued the 1995-W, which I didn't buy at the time and regretted ever since. Then one a year again until the 2006 Reverse proof. Then they interrupted the set with their bogus "shortage" in 2009, followed by amother reverse proof in 2011, and proofs with two different mint marks plus yet another reverse proof in 2012. My guess is by the time the 30th anniversary rolls around they will issue a set of 30 different proof variations, (four mint marks plus no mint mark, each in regular proof, reverse proof, regular proof obverse with reverse proof reverse, reverse proof obverse with regular proof reverse, and a bunch of "minted at xxxxx without mint marks".). They may drive me away from the series altogether; they seem to be trying.