@jon Around here (Rosmalen, Netherlands), we have a lot of different bicycle racks - these ones, but also low wheelbenders, wheelbender pillars with a loop for locking a cable lock to, etc....
The staple racks are the only ones I see people consistently using as designed.
More curiously, when they are all in use, people tend to just extrapolate the parking area off to the side in a perfect line, where there are no racks. Whereas with wheelbenders it often seems to get a bit messier.
(The parking extension thing is a generally interesting phenomenon, I've also observed it elsewhere before, in a place where there were no bike racks to begin with, just a large oddly-shaped open space!)
@jon Oh, correction: the other type I see used as-designed are the two-level stackable bike parking racks, which have a very long slot to fit your bike wheel into, and a wheelbender at the end. But those are generally only economical at train stations and such, so I consider them a special case.