My last choice for anything on my Wing is aftermarket and I too have the OEM ones. I installed them for a long trip when I was going to be riding 2up. Since then, they are rarely used and everyone likes them. Plus you don't have to annoyingly push them out/in to use the trunk/I was going to buy a set of those too, but I've seen used sets for sale on eBay and some of the sellers say they will not mount on bikes with Honda OEM passenger audio or seat heater controls, without relocating those controls...which was why one of them was selling.
I ended up getting a set of OEM armrests (mount on top of the rear speaker housings). Took about 3-hrs. to install, but they are heavy-duty, my passengers like them and they are very unobtrusive.