On my knees, I would say that I used one, the cart GPS version, several years ago at Arcadia Bluffs. It was nice for that once in a blue moon round, at course far, far away that has some twists and turns and elevation changes.
Have had no overwhelming urge to use the hand held, yet.
But, it is inane, or funny, when playing with usual Saturday or Sunday game. Everyone in the groups shoots between 72 and 80, occasional sub-par round by a few, more above 80; but we have several who want to know the EXACT yardage. Sometimes, when I'm near a sprinkler head, someone in our group will ask the yardage. I say I'm on the '142'. They say 'What do you think I am ?'
Their location is off to the side of the fairway, etc.
I'll say 'You're 141, but off to the side, so your're 143 plus 3 yards for the breeze, plus 2 yards because it's slighty uphill, and plus 5 yards because temperature is 50 degrees.'
They ask if it plays 153 and I'll say 'Yes.'
Someday my humor will be appreciated. I mean it is a truthful answer but it just sounds so funny, in light of our play. Like anyone in my group can hit it 153 versus 151 or 155, off a slight sidehill lie, with a slight cross wind, from the first cut of rough.
They have those GPS gizmos that you buy separately for driving information, if your Lexus doesn't already have one.
I am waiting for the golf bag with the distance device already sewn in, above the standard ball pouch, with a nice display screen. It should be in a store near you soon (10 years anyway).
Huck can remove the battery or use his old ratty bag. I might do the same thing.