Serial stupidity

American story of people being lured by job ads on Craigslist to a farmhouse where they were killed. The economics of it seem unbelievable.

Authorities say they were targeted because they were older, single, out-of-work men with backgrounds that made it unlikely their disappearances would be noticed right away.

All the victims were robbed of things including personal items, a truck and a weapon, prosecutors say.

Out-of-work farmhands, by definition, are broke.  However many of them you kill you're barely breaking even, especially as you apparently have to pay fo a breakfast for them first. Couldn't they have advertised positions as rural merchant bankers? I know, more

likely their disappearances would be noticed right away

but at least you could get an expensive suit out of it.  Could you ask their shoe size in the ad, or would that seem suspicious?