Exactly this is the thought that crossed my mind today. You do something good for me and I give you $X for that. Now on top of that for $X I want you to also

Exactly this is the thought that crossed my mind today. You do something good for me and I give you $X for that. Now on top of that for $X I want you to also come to a building I built for you , stay there for 8 hours a day and do the thing I want you to do. All for $X. However there is Joe who will give you $X for the same job and a little more.But you get to choose where and how you do it. Which one will you do?