There is a difference between a
rare coin and a valuable coin.
There are probably no other coins with a double strike exactly like this one. That makes it
rare.
Most collectors would rather have a perfectly struck coin in the best condition possible than a coin that is a double strike like this one. Most collectors would not pay much of a premium for a such a coin. Therefore it is probably not very valuable even though it is quite interesting and has a certain amount of
eye appeal.
Hope this answer helps you.