Is there any MRP reason not to get one? I'm 39 and am 100% certain I don't want to father any more children. I've been responsible for BC for my entire marriage. Wife is unwilling to get on BC for no particular reason. I'm really tired of condoms.

I'd decided to save for one (will cost about a grand, not covered by my medical insurance) but Athol Kay in MMSLP specifically advises against it.

Do vasectomies lower a mans SMV or otherwise reduce the dread a wife might feel? Are the advantages worth that trade off, if so? Thanks!