Women gravitate towards their own mothers because they have been brought up and nurtured by their mothers their entire life and have a lifetime of memories together.
Unfortunately men often do not seem to have the same level of connection with their own mothers.
There is a classic saying, “A son is a son til he takes him a wife, a daughter is a daughter for all of her life” (or something along those lines)
When your husband and DIL married, he did not agree to join her family and she did not agree to join your family, they made a pact to create a new, nuclear family together.
It sounds like they have just made a decision to do what is best for them and, unfortunately for you, as her family are in a financial position to be able to visit frequently, it seems you have the short end of the stick.
I would just tell them that you understand they are doing what is best for their nuclear family and that you 100% support them in that but that they will be dearly missed and you will miss spending time with them and your grandchild. Maybe ask DIL if there’s anything you can do to help in the run up to them moving and tell her it would be nice if you could set up regular video calls once they are settled, if that is ok.
I expect they will still be able to visit you as well as you hoping to occasionally visit them but this is one of those situations where they just need to experience life for themselves.
I’m sorry you’re going through this, it can’t be easy for you.
Being asked for an honest opinion

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