Almost all of the audio gear I've bought off eBay over the past few years was stuff that was originally sold elsewhere than the US. That being said, they came with built-in multi-voltage selectors and those funky European plugs. Yes, they also came with US adapters, but I think those are fugly.
I could just have cut the ends off and wire and screwed on some US plugs, but those things are even uglier than the adapters. So I bit the bullet and bought power cords with the proper plugs molded onto the ends and popped the covers on my gear thinking it would be a relatively easy matter of replacing the cords.
Maybe if I did electronic repair for a living and had the necessary skill set, but I do not. Yes, I safely completed the task (nothing sparked or smoked when I powered everything back on and they still work) on the three pieces of equipment that I swapped the cords on, but after doing this I honestly think the soldering process is 50% skill and 50% black magic voodoo. Not to mention you need three hands. I mean, it looks so easy when someone else is doing it…