Not that I ever bought any myself, but I know of others that have for their business establishment
(sport bar). I have a feeling that all of mine will one day end up in garage sale too or at least that's what I'm thinking is goin to happen to them eventually.
Anyhow. I've mounted several deer that I did not harvest/kill myself. You're more than welcome to search the DIY threads for my first euro mount that I did, which is a good example, plus I had a big summer time buck mounted
(full velvet shoulder mount) that I had a two year history with that got hit by a truck.
I do not think they bring me bad luck at all. If anything, they make me feel good that'll have a chance to be appreciated by someone, which means quite a bit to me. I also have history with each of them too, so not only can I speak to that, but I typically will have trail camera data to support whatever stories I have behind them.
My workshop is my man cave, which is full of antlers, mounts, skulls and I'm running out of room too despite that I continue to collect them today.
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7:00am EDIT:
Since I've got some idle time while sipping down my coffee, I went ahead and looked up that euro mount of mine for ya.