A question for the supers here....are the jagged edge bunkers really any less to maintain than the smooth edges?
I tend to believe the cost is mostly in keeping the middle of the bunkers "perfect". And from that perspective, I am not sure there is a huge cost difference in either photo above. They both slope about the same, have the same amount (i.e., very little) surface water coming in them. HV has whiter sand, which may lead to more contamination issues. It also looks like it would be easier to rake with a machine, rather than by hand, although there is argument there that hand raking is almost as quick, and much better results wise.
As always, I could be wrong......