Collecting is a popular hobby because it overcomes dopamine disappointment. A collector always has something to seek. When he finds it, he avoids dopamine droop by starting the next quest. A collection gives you many “needs” to fill, and you have to process a lot of detail so your mind is always distracted from unhappy chemicals. You can also bond with other collectors to stimulate oxytocin. And if you one-up other collectors, you enjoy serotonin.
