Why do the Jews in the OT in Joshua, Kings, Chronicles always list their war spoils after each battle? I have my doubts of the motivations, as we only ever hear of how great it was to fight enemy X and take their women, sheep and gold. Is this a fair statement? Why don't the Hebrews ever attack neighbours just for being evil, but always remember to take some bounty?
Just going for the obvious answer here, but even if you do attack someone just for being evil, and you end up killing them, they've left a lot of stuff behind that they don't have any use for anymore.

Also, particularly in the early years of Israel, these spoils were not used for personal enrichment, but for providing for the Tabernacle and funding the Lord's work, and the Lord took that pretty seriously. See Joshua chapter 7, which takes place immediately after the battle of Jericho, for an example of what happened when someone broke the commandment to bring the spoils to the house of the Lord.