Not true. I think most of the time it's the docile personality that most people enjoy.
OP, I hear you on the loosing interest part. It happened to me a while back when life got a little bit too busy. The great thing about BPs is that they don't have any emotional attachment to you. If you're not feeling it this month, that's ok. Do your usual upkeep to make sure your pet is healthy and do your own thing.
When I first began in this hobby, I used to fuss over my BPs every day. Now, I enjoy them once in a while. I still enjoy watching them explore but I handle probably once or twice a month and I'm content with that.
I guess what I'm saying is I found my happy balance between obsessing and lossing interest. You just have to find your happy medium.