I don’t claim to have a solution but one thing that has always bugged me about this. When I award contracts or buy pretty much anything I can’t take a bribe of money, but I can take a bribe of effort. It is acceptable for me (I did have this conversation more than once) to straight off tell a salesperson I can go higher on price if they agree to keep prices constant so I don’t have to constantly look at them. Or if they agree to do some other time saving measure.