I have a number of Bibles, each bought for a specific purpose.
For many years, my 'reading' Bible as well as the Bible in which I do more detailed study has been NASB. This dates back to when I accepted Christ and attended a Bible study with the Christians that guided my early journey (they mostly used NASB).
But I have found that many of the churches I have attended greatly prefer KJV, so I have several of them, including one with very large print that I can read without glasses when listening to sermons and reading references cited by the preacher.
I also have several study and chain-reference types of Bibles that are mostly KJV.
Electronically I have many translations and several commentaries through Olive-Tree, including a reverse interlinear in ESV.
As do I!
The KJV is the only one that is not "copywrited" so I have used it the most but actually have leaned to the ESV lately.