Interesting topic and the fake watches for fake people is a bit too stereotypical...
i have a mix of real and replica watches. The reps are because I appreciate the design and a mix of: not wanting to spend tens of thousands on a collection, but also not wanting to worry about the real watch in certain situations.
A great example I have both gen and replica omega sea master and planet ocean watches. Near identical (though you can certainly tell the quality difference if you look closely - winding quality, fonts, pearl etc). I wear the real 50% of the time and the rep 50% of the time. The rep if I am playing sport, in foreign countries /places I don't know and where I could get unwanted attention. Scraping / scratching a rep is not the end of the world, or getting mugged for a rep would be scary but not a financial loss. Typically when travelling I bang my watch... Rather bang the rep.
I also have just a rep of some watches and just a gen of others. Why? Cost, design, how I want to use and wear it. I see some as transient watches, others as keepers and investments.... As with some here, I have bought a rep to try out and see how it feels and looks - I bought a rep Breitling, with the intent of buying a real one later, but it was too showey and didn't look right on my wrist... If I had bought a real one from day one I would have been [censored].