When looking at my system, there is nothing in it over 2 years old, so I guess that makes me a 2. I would say it's a sense of adventure that leads one to experiment with new things. Some experiment in different ways, with automobiles, women, etc. I still have a car that I bought new in 1987, and a wife since 1984 (no I have not experimented!). So I guess audio is where my adventuresome side comes out and plays. After years of experimenting I've learned that you can be happy, but you can 'usually' do better also. I quote 'usually', because all change isn't for the better. Which can lead to more change.
I've been an audiophile (psycho??) for 30 years. I did live without changing anything for 7 years (a personal record). I did this at a time when my children were younger and required more attention. As they've progressed into their teenage years, and have become more reclusive, I've recently found myself being drawn back onto the merry-go-round. So I guess I've been a 1, but I'm currently a 2. I would say that I listen to music more now. I don't think it's because I'm an equipmentphile, I think it's simply because I also have more free time now then when my children were younger.
Believe it or not, they don't find dad as much fun to be around as they used to.
Sorry for the long reply, but I guess it's a complex issue.
Conclusion: I was a 2 who became a 1, who then has become a 2 again.
Happy Holidays,
John