my mom was going to name me after her - until the last minute...
I wish she had because it'd be much better than my given name - which is why I don't use it lol
my middle name .Ellen is after my maternal great grandma.
If I had a baby boy I'd not call him Steve, Roy or Robin (our dad's names), but my brother is named Robert after his dad, but then his dad never went by the name Robert, he got called Spike (or Bob when he gave up building and went to work as a lecturer)
I guess if a family member had a name I wanted then I'd do it, to me names are a very important part of who you are.