So far as the crack, I've owned about 9 basses so far and only one an Ibenez developed a crack but it was after hard use.
Not to keep knocking on you for it but I would wager that the basses that didn't have the cracks didn't have neck pockets as tight as this one and the Ibby that did. The wood is soft and flexes, the finish os hard and cracks. 99 times out of 100 its purely cosmetic.