I had my sleeve done 2 months ago. My BMI was 34. So far I have lost 30 lbs.
I don't think that the surgery is drastic if it is going to change your life. I knew where my eating and binging was going to take me. I had to change that. I was on the road to Diabetes (as it runs in my family).
I tried for a year to diet. Failed. I tried exercising more. Never saw the scale move. I tried weight loss programs. Didn't help. After a year of all that I had gained another 15 pounds. I was tired and miserable.
I looked into getting surgery and realized that I needed it. It was the only tool that would keep me from getting worse.
I personally think it is better to get it done at a lower BMI. Don't wait until things have gotten out of control. Don't keep failing and beating yourself up. Do this now and get on track to a healthier you. I definitely don't regret it.