Is there any real benefit of an honors designation?
I can't speak to employers or grad school applications but my experience with my honors college has been overwhelmingly positive, and it's requirements are far more than yours. (Not to bad talk your honors system, just stating.) 

You will learn more and in the end, isn't that what you're looking for? It also opens up scholarship opportunities and networking chances. 

Plus, it goes a long way toward making a large school (if you're at one) seem smaller and friendlier. 

To me, you have described no real reason not to do it.