Much as I agree with @ped in principle, I would be concerned, especially as it is your first bass and as you improve and begin to suffer from the inevitable GAS you’ll maybe want to sell this bass and get something else, that the knot in the fingerboard may put off prospective buyers. So many of us, despite going into endless detail about all manner of technical details, are hugely swayed by the aesthetics of particular instruments. I wouldn’t buy your bass, even if it were a model I was after, because of how the fingerboard looks, I’d wait for one without the knot, for no other reason that I’d be concerned about resale. Forgive me for playing Devil’s advocate but I think it is a consideration worth bearing in mind.