Pirates were first released in 1989 after a small break they were back at it in 1991 and for seven straight years through 1997.
In 2001 they resurfaced with only 2 sets and in 2002 with 1 the awesome 10040, Black Seas Barracuda with 906 pieces.
After a long pause, they came back in 2009, 2013 and their last adventure was in 2015.
In total, 84 sets were produced.
The sets can only be found in the collector's market and their price depends on their collective status.