What General Guidelines Should be Considered When Obtaining a Personal Bible?

There are so many different Bibles available in the market today. They have a plethora of features unavailable just a few year ago. There's a whole gamut of things to choose from that dear Grandmother never dreamed would be featured! So what facts should be sought out and considered before investing in a personal Bible? {This is not asking for "the best translation" since that involves academic propensities and opinions that may apply to only certain believers.}