I based my goal on the memory of being that weight. I could do everything I wanted, and also felt pretty good. It will still be an obese BMI. When I get there I may lose more. If I do, it will be to get my BMI to around 32, which make it possible to get skin surgery (privately). And for me, it will be a weight I can maintain at.
I've looked at what is required for me to maintain a healthy BMI, and for me I don't think its realistic. So I'm not even considering it.