An educated staff is a more loyal staff, and in this current job climate, where many positions go begging, reducing turnover will give you a distinct advantage. Although some employees may not want to put the effort into training, others clearly value the investment their employer is making in them. It will make them confident and keep them motivated. Having a strongly-trained staff will also allow you to do your own job instead of having to keep an eye on your employees.
And don’t forget the most obvious reason for Employee Education: fairness to your customers, who depend upon you to serve them well. A well-trained staff will keep customers coming back.