I don’t do this simply because it would partially take away from the joy of having the real thing. For me, part of that joy is seeing it on my wrist for the first time, the unboxing experience etc. If I have a crappier version of that experience before the “real thing” then I’m purposely taking away from my own enjoyment.
Plus, most watches (even highly sought after ones) can be tried on before buying. These aren’t cars, you’re not going to find anything surprising about it 3 days into ownership that you couldn’t 20 mins at the store.
Honestly, if i’m spending 5K, i’ll stretch and get the OP41, or the Explorer 1. Both amazing watches with storied histories.
Realy depends what you’re into.