vows and such

So I was checking the classifieds on thespec.com looking for a new job and for whatever reason decided to browse the personals (to mock, obvi.)

Of course I found the usual "M 50s seeks bride" ads, but there were also a ton of married men seeking married/single women for a "discreet" relationship. Is this what monogamous relationships have come to? I had long given up on the idea that when two people get married they live happily ever after, free of problems and hot secretaries, but this is too much. Shouldn't people have to work to have an affair? Is it so difficult to find someone to cheat on your wife with now that you just put an ad in the paper and take whatever lonely spinster comes along?

Why not just go see a hooker?