My dh had it done when we had our 4th baby. That's as many as we can afford to have. My theoretical death/divorce is not going to alter that fact.
This is all theoretical because my dh has said he would never remarry and wouldn't want more kids, but I am not prepared to make my contraceptive choices on the off chance that some theoretical future partner of dh might want babies - I don't give a shit about her and what she wants! I'm operating with the view that dh and I are not going to separate or die until well into old age, but if it did, some potential new partner is not someone I'm going to plan my life around.
Many of you will think this is fucked up thinking, but I don't actually want dh to be able to have dc with anyone other than me. I would not consider that to be in my children's best interests. If the worst happened to dh, I would not want to remarry or have other dc, for the same reason.
My dad had a vasectomy after my little brother was born - my mum changed her mind and when I was 15 (DB was 12) she and my dad had twins. My mum was then sterilised during her CS. Important to be sure, because they were both worried the reversal wouldn't work and were very lucky.
It's ridiculous to say it makes someone less of a man - being prepared to put his wife first and properly share the burden of contraception/invasive procedures involved in having a family, actually makes someone more of a man imo.
Ironically though, I am now back on the pill, because of my bloody periods!
Another thing is that when you are 39, the combined pill isn't prescribed because it is not as safe for women past this age - my Dr will only give me the mini pill and with my dodgy memory for taking things on time, I'd not like to rely on that for contraception.