I think some of us have felt something like this for something, either the Atari ecosystem, a hobby, a sport, etc. It may be part of our personality in that our focus and attention is binary. Either we are switched on and running red hot or it's completely dead to us. A former co-worker of mine (he's retired) had it real bad especially since he would move from one hobby to another. He called it serially monogamous hobbies. When he was young he was 100% into club automotive racing. He had a Camaro that he overanalyzed and raced as if he was a pro. Then he sold the Camaro and got into club motorcycle racing. After that it was firearms. Then it was backpacking. Then he got into economics and finances. Then ... I think you get the point.
I think of my passions as a flame. They can flare up, they can flicker, and they can also flame out. The flames that smolder burn may burn colder but they can burn longer. Remember that old flamed out fires can be quickly revived compared to something cold that never burned.
Acquisition is a thrill because it feels like a hunt, doesn't it? Receiving the acquisition is satisfying because it fills a hole or void. But remember, in the end it's just "stuff" and it doesn't care about anyone or anything. At some point, and I'm not sure where that point is, it can become hoarding. In order to myself in check, I always try to come up with a purpose for owning something. For example, my 1200XL is my workstation, my 800 is the 4-player family game machine, and my 65XE is for PAL software. A spare or two is certainly OK when you consider this hardware is no longer being made but be careful with too many spares too.
I also keep myself in check when shopping by asking myself how much better off would I be if I took these XX dollars and invested instead. That $200 accessory today could be a $1000 dividend paying stock in 20 years!
To each their own, I suppose. Ok, I'm done with my armchair psychology.