What ER is too high for International?

[dougie790]

What ER is too high for an international fund. We have in our 401k Thornburg International Value R3 with an ER of 1.45%. It has had good returns in the past but I am unsure if that high of an ER is worth it, especially considering my 500 Index fund ER is 0.09% (VIFSX). Any thoughts?

Thanks,

Dave