I crunched the numbers extensively when I retired. After everything, I decided to buy as much as I could (which amounts to replacement of 55% of our retirement check if I die.) As Nords noted, they are phasing out the SS offset (which decreased the check a surviving spouse received once he/she became elligible for SS under the SS record of the military spouse) and you no longer have to pay premiums after a certain point (I think it is after paying premiums for 30 years).
- From an "expected payoff per dollar of premiums" perspective, SBP is a better deal for some couples than for others. It is a super deal if the military member is male, in poor health, and older than his wife. Regardless of the relative ages and other factors, it really boils down to whether the surviving non-military spouse would be abe to have a suitabe qualty of life without the SBP check. If not, then you need to do something. At least in my case, I could not duplicate the protection offered by SBP with a life insurance product/anuity. I looked.
Other factors to consider:
-- There are sales folks out there with slick brochures trying to convince retiring folks that their company offers better protection than SBP at lower cost. All factors considered, I don't think it is true.
-- The survivors payments under SBP are inflation indexed and go on as long as the spouse lives.
-- Premiums you pay for SBP are pre-tax
-- The SBP program is supplemented by tax money. That means there's more going out than coming in--a sign that this is a good deal. This supplement is heaviest for the first few hundred dollars of retirement pay covered, and declines after that. IMO, nearly every service member would benefit by signing up for a very minimal base amount (I can't recall the specifics on phase-out of the govt kick-in)
My wife doesn't have a pension income of her own. The way I see it, she made a lot of contributions/sacrifice that enabled me/us to earn a pension, and it was worth the SBP premium in our case to assure she continued to get some benefit from it after I shove off.