It's a gamble. SBP is a better deal if you die tomorrow. Term life is a better deal if you die in 20 years. I chose term life. I can get a $1M policy through Navy Mutual that is going to last me until I am 71 for around $100. I also have $650K through WN that is super cheap.
I am all about taking care of my family, but I personally plan on living until I am old, and the rates for SBP are redonkulous for my family to get paid 40 percent of my 50 percent. No thanks. Either way they are taken care of, this way I just don't pay through the nose to ensure that is the case.
Do a solid risk-benefit analysis. When did your parents die? What is your lifestyle like? If there is a good chance you are going to be toes up in 10 years, SBP may be right for you.