No I guess you didn’t. I just never had a use for them myself.
Depends on how far you hit off the tee. If you’re in the 200-220 range, they aren’t much useful. I hit 260-300. From the blues on most courses (6200-6500) the 150 markers are a good idea of the area my ball will land, so I like them as a reference tool.
I’m not bragging, just saying how it is.