No doubt the OPC realizes every member of its church has several Bibles of their own at home.
Sadly, I cannot say that for most of the RCs I know.
I don’t know about most of the RCs that you know.
We have two giant sized family Bibles - one from my parents, and one that we bought after we got married. My wife has two study Bibles; we have another couple in our book collection, and I have two for my Palm Pilot. Plus, I access the NAB online.
I do know about most of the RCs that I know. :)