Any firearm will have to have some parts replaced (had to replace sear, disconnector, hammer, and springs on my CZ-DW). Did it reduce the value? No, as I used replacement parts.
You can buy a Harley-Davidson. Chrome the heck out of things, and what do you have? A chromed out HD. If you were going to buy it used, what book would you look at? The Blue Book, and they don't care about how much was spent on chrome.
Where do you buy your tools at? Harbor Freight or the Mac Tools Truck? When I don't care about the quality, Harbor Freight gets my dollar.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)