I agree completely but there have been years these could have been graded where shipping would not have been an issue or you can do what i do and pay an icg employee to travel to you to gather all the coins at once and then bring them back to your nearest airport when done 
The dangers of moving a collection like this are real and that is always a consideration. However, my main reason to not have these graded is that I believe grading is only a negative thing for most coins (obviously there are exceptions). Removing these coins from their capsules and exposing them to oxygen as well as other potential contaminants along with adding more people to the chain of possession can only be a bad thing in my opinion. I've seen cases where graded coins begin to tarnish where their ungraded counterparts did not, leading me to suspicions that not all coins are properly handled when being graded. I've also seen enough coins graded and then re-graded to get a wildly different grade, so I have my doubts as to how valid the ratings are anyway. I don't want my collection's worth to be determined by whose desk it landed on or if that person is having a good day or not and I don't want to trust that the person handling them is going to do so properly as I have no way to verify this. It is simply a case of a lot of risk and no tangible reward in my opinion.
