I have LOVED the beauty of mechanical watches my entire life. About 15 years ago, I started a little savings account to purchase an Omega Speedmaster. I have long since past the amount needed to purchase that beautiful timepiece, but I now have a wife, child, and house. The money is still there, but I cannot seem to pull the trigger. My wife says she is entirely Ok with me doing this as we are comfortable money-wise, but the "dad" in me keeps saying "You might need that money for a rainy day."
It might be worth purchasing one second hand, then most of the depreciation is already gone. If you need the money, you're likely to recoup most of it by re-selling.