Originally Posted by salcott
It's common to get a pickup with a new bass, especially if it requires a bit of skill to install properly, but it won't be free.
The OP seems to be asking if it's customary for pickups to be thrown into the deal when purchasing a bass. To which is the answer, I believe, is no.
Pickups are a matter of personal taste, and what works for one player and/or style of music won't work for another. Other bassists use no pickups at all (you won't see the orchestral section plugging in).
If a pickup happens to be pre-installed on a bass, it may be kept on the instrument when listed for sale. But no, a new one won't be installed as a matter of course.