Yeah, there are some things that are kind of the "cost of entry" like decent work conditions, etc. But once you meet that minimum bar, I think more money is the easiest way to lure most people. Now there will always be some people who can be lured away by something else... one good possibility would be offering a private office instead of open plan. Hell, I'd probably take less money just to have a private office. But I doubt everybody feels as strongly about that as I do.