Pretty much. Most people have a threshold where they would eventually get a point where they earn more money than they can spend. Especially if you're older and have your habits locked in. Jim was thirty when he left Escapist and started making 10k a month, and by that point he should have had his expenses established. Instead, he saw all this money coming in, used it to buy boglins, and never stopped.
You know, typically when you move, you start to realize how much excess shit you have and curtail your spending, sometimes even selling things so you have an easier time next move. Jim moved from Mississippi to Conrad's place, then to the UK, and he's still buying excessively. I wouldn't be surprised if he let his ex-wife and Conrad keep shit and he just rebought his collection.